Class 10 Cbse SA 2 Guess Paper for Social Science | NCERT Social St Sample Paper for Summative Assessment II (Term 2) | Model Questions - 4

Summative Assessment - II (SA 2 - Term II Examination)

(Sample Paper / Practice Paper / Model Questions)

CBSE Class X (NCERT / CCE pattern)

Social Science

Time: 3hours                                                                            

M.M.: 80

Instructions

1. Attempt all questions.

2. The question paper consists of two sections A and B.

3. Questions of sections A and B have to be answered separately.

4. Questions from 1 to 16 are MCQ to be answered in 30 minutes only.

5. Marks for the questions have been mentioned against each question.

6. Additional 15 minutes time has been allotted to read the paper.    

SECTION – A [MCQ]

Choose the most appropriate answer from the given alternatives:    [16]

1. In a SHGs most of the decision regarding saving and loan activities are taken by

(a) Bank (b) members (c) non-government organization

2. Formal Sources of Credit do not include

(a) Banks (b) co-operatives (c) employers

3. The most common route for investments by MNCs in countries around the world is to

(a) Set up new factories (b) buy existing local companies (c) form partnerships with local companies.

4. Globalisation has led to improvement in living conditions     

(a) Of all the people (b) of people in the developed countries (c) of workers in the developing countries

(d) none of the above.

5. Mageni was a leader of  

(a) U.S.A (b) Spanish (c) Italy (d) Germany

6. India-China does not include the following country

(a) Laos (b) China (c) Vietnam (d) Cambodia

7. Government of India Act passed in

(a) 1919 (b) 1928 (c) 1931 (d) 1935

8. This is a light metal in the produce of aeroplanes

(a) Mica (b) Copper (c) Bauxite (d) Gold

9. Human Rights Organization are an example of

(a) a pressure group (b) a political party (c) a pubic interest group (d) a religious group

10. AIADMK is

(a) a lobby (b) a political party (c) an interest group (d) a single issue movement

11. Democracy does not stand for the following  

(a) democratic rights (b) election (c) violence (d) one man rule

12. Which one of the following agencies is responsible for production and marketing steel for Public Sector Plants

(a) HAL (b) SAIL (c) Tata Steel (d) MNC

13.Vietnam had been under the colonial rule of

(a) USA (b) UK (c) France (d) Portugal

14. Otto Von Bismarck was the chief minister of

(a) Prussia (b) Hanover (c) Australia (d) Italy

15. The Red Shirts was the army of volunteers to fight for

(a) Italy (b) France (c) Germany (d) Ireland

16. Duck Metternich was the Chancellor of

(a) France (b) Austria (c) Germany (d) Hungary

SECTION – B

For question 17, 18 and 19 select one question from each from all the following Parts I, II and III:

17. “The anti-imperial movements developed everywhere nationalists”. Give two reasons. OR

 Why did the French build canals and drainage system in Vietnam ?          [3]

18. Describe in brief, Bolivia’s Water War. OR

      What were the aims of Quit India Movement ?        [3]

19. How would you explain the rise and fall of Napoleon ?         [3]

20. What was Mahatma Gandhi’s attitude towards the Dalits ?       [3]

21. What was the importance of 26^th January 1930 in Indian history ?     [4]

22. What is multi-party system ? What are its disadvantages ?     [3]

23. What is the Regional Political Party  ? State two merits.       [3]

24. “Decision making in democratic government is slow.” Comment.     [3]

25. Distinguish between Pressure Groups and Political Party.      [3]

26. How can you remove corruption ?      [3]

27. Distinguish between ferrous and non-ferrous minerals.      [4]

28. Why are India’s inland waterways poorly developed ?      [3]

29. What is the importance of solar energy in India ?     [3]

30. Agriculture and Industry both depend on each other. Comment.     [3]

31. Why do lender’s ask for collaterals while lending ?    [3]

32. What are the differences between ‘Formal’ and ‘Informal’ sources of credit ?    [3]

33. What are the various ways in which MNCs set up or control production in other countries ? [3]

34. Explain the needs for consumer consciousness by giving two examples.     [3]

35. “The impact of globalization has not been uniform.” Explain this statement.    [4]

36. On the outline map of India show the following:                  [4]

(i) Ramagundam

(ii) Namrup

(iii) one cotton textile mill in Punjab  

(iv) Mangalore port.

++++++++++

++++++

MANUFACTURING INDUSTRIES | Contemporary India II, Class X, Ncert Cbse Geography | Study Materials, Hot Questions - Solutions

Class 10 Ncert Cbse Geography

Contemporary India Part – II

MANUFACTURING INDUSTRIES

   Important Points (Notes) to Remember Read

   Hot Questions (Extra Very important questions)

Q.1: How can industries be classified on the basis of source of raw materials used?

Q.2: Explain how agriculture and industry move hand in hand.

Q.3: What is importance of the manufacturing industries?

Q.4: “Industrialization and Urbanization go hand in hand”. Explain.  

Q.5: Which factors are responsible for the decentralization of cotton textile mills in India?

Q.6: What is ‘large scale’ and ‘small scale’ industries? Give examples.

Q.7: What is the importance of Jute industry?

Q.8: Mention different factors affecting the location of industries.

Q.9: Why does textile industry occupy a unique place in the Indian economy?

Q.10: Why has the Chhotanagpur plateau region maximum concentration of iron and steel industries?

Q.11: Why were cotton textile industries mainly concentrated in Maharashtra and Gujarat in the early years?

Q.12: Classify industries on the basis of ownership.

Q.13: What are the major problems of cotton textile industry in India?

  Click to view Answers

CBSE 10th Contemporary India II – Manufacturing Industries Further study

• Ncert Cbse Geography Class 10 Manufacturing Industries | Contemporary India II - Exercise Solutions [Read]
• 10th Cbse Ncert Geography Multiple Choice Questions (MCQ) | Chapter 6 Contemporary India II - Manufacturing Industries [Read]
• Class 10 Contemporary India II (Geography) solutions for Exercise In-Text questions - Manufacturing Industries | NCERT (CBSE) Social Science (Geography)

Class 9 Hindi (Course A) Guess Paper-1 for Summative Assessment II | Ncert Cbse (CCE) Sample Paper-1 (IXth Kshitij, Kritika Bhag - 1)

 Class IX Summative Assessment 2 (SA II)

Hindi (Course A)

Sample Questions Paper | Guess Paper | Practice Paper | Model Paper

Chemistry Class X, NCERT (CBSE) Science Multiple Choice Questions | Carbon and its Compounds - MCQs (Part I)

Class 10, Ncert Cbse Science

Chapter 4, Chemistry CARBON AND ITS COMPOUNDS

Multiple Choice Questions (MCQs) (Part - I) 

Q.1: Which of the following is not a saturated hydrocarbon ?

(a) cyclohexane (b) benzene (c) butane (d) isobutane

Q.2: The bond between two identical nonmetallic atom has a pair of electron ?

(a) unequally shared between two atoms

(b) transferred completely from one atom to another

(c) With identical spins

(d) Equally shared between them

Q.3: Covalent compounds are generally –

(a) Soluble in water  (b) insoluble in water 

(c) Ionize in water (d) hydrolyse in water

Q.4: Propane with molecular formula C₃H₈ has –

(a) 7 covalent bonds (b) 8 covalent bonds

(c) 9 covalent bonds (d) 10 covalent bonds

Q.5: A hydrocarbon reacts with ammonical cuprous chloride solution to form a red precipitate, the hydrocarbon is ­–

(a) Ethane (b) ethane (c) butane (d) 1-propyne

Q.6: Which of the following substance is added to denature Ethanol?

(a) Methanol (b) pyridine (c) copper sulphate (d) all of these

Q.7: Which of the following is not an allotropic form of carbon ?

(a) fluorine (b) fullerene (c) diamond (d) graphite

Q.8: Which of the following represents the correct deceasing order of hydrogen atoms ?

(a) alkanes, alkenes, alkynes  (b) alkanes, alkynes, alkenes

(c) alkenes, alkynes, alkanes  (d) alkynes, alkanes, alkenes

Q.9: Detergents are sodium or potassium salts of long chain of :

(a) aldehydes (b) ketones (c) carboxylic acid (d) sulphonic acid

Q.10: Which of the following represents the structure of N₂ molecule ?

       

Q.11: In double covalent bond there is a sharing of

(a) 2 electrons (b) 4 electrons (c) 6 electrons (d) 3 electrons

Q.12: Cation is formed when

(a) atom gains electrons (b) atom losses electrons

(c) proton is lost by the atom (d) atom shared by electrons

Q.13: The total number of electrons that take part in forming a bond in N₂ is

(a) 2 (b) 4 (c) 6 (d) 10

Q.14: Which of the following has the weakest carbon-carbon strength ?

(a) C₂H₂  (b) C₂H₄  (c) C₂H₆  (d) all have the same bond strength 

Q.15: Which of the following salt when dissolved in water produce hard water ?

(a) calcium sulphate (b) magnesium bicarbonate (c) calcium chloride (d) any of the above.

Answers: 1-b. 2-d. 3-b. 4-d. 5-d. 6-d. 7-a. 8-a. 9-d. 10-a. 11-b. 12-b. 13-c. 14-a. 15-d.

CARBON AND ITS COMPOUNDS Further study

• Carbon and its Compounds - NCERT Solutions of Exercise Questions | Class 10 CBSE Science (Chemistry)

• Carbon and its Compounds - Solutions of In-Text Questions | Class X, NCERT (CBSE) Science - Chemistry

• Class 10 Carbon and its Compounds | Ncert Cbse Science (Chemistry) | Hot Questions - Answers

Carbon and its Compounds - Solutions of In-Text Questions | Class X, NCERT (CBSE) Science - Chemistry

Class X CBSE Board, NCERT Science Solutions

Class X, Chemistry, Chapter 4, CARBON AND ITS COMPOUNDS

Solutions of NCERT In-text Questions  

Click here to view NCERT Textbook In-Text questions and solutions

CARBON AND ITS COMPOUNDS – Further study

• Carbon and its Compounds - NCERT Solutions of Exercise Questions | Class 10 CBSE Science (Chemistry)
• Class X, NCERT (CBSE) Science - Chemistry | Carbon and its Compounds -  MCQs (Part 1)
• Class 10 Carbon and its Compounds | Ncert Cbse Science (Chemistry) | Hot Questions - Answers

Carbon and its Compounds - NCERT Solutions of Exercise Questions | Class 10 CBSE Science (Chemistry)

Class X, NCERT (CBSE) Chemistry (Science)

Chapter – 4, CARBON AND ITS COMPOUNDS

NCERT Answers of Exercise Questions  

Q.1: Ethane, with the molecular formula –C₂H₆– has

(a) 6 covalent bonds  (b) 7 covalent bonds

(c) 8 covalent bonds  (d) 9 covalent bonds

Answer: (b)

Q.2: Butanone is a four-carbon compound with the functional group

(a) carboxylic acid  (b) aldehyde

(c) ketone  (d) alcohol  

Answer: (c)

Q.3: While cooking, if the bottom of the vessel is getting blackened on the outside, it means that

(a) the food is not cooked completely

(b) the fuel is not burning completely

(c) the fuel is wet

(d) the fuel is burning completely

Answer: (b)

Q.4: Explain the nature of the covalent bond using the bond formation in CH₃Cl.

Answer: The bond line structure of CH₃Cl is given as

Carbon has four valence electrons. It shares 1 electron each with 3-hydrogen atoms and I electron with chlorine. The bond between C and Cl atoms is covalent but due to higher value of electro-negativity of Cl, the C–Cl bond is polar in nature.    

Q.5: Draw the electron dot structures for:

(a) ethanoic acid  (b) H₂S  (c) propanone  (d) F₂

Answer:

(a) Ethanoic Acid

Ethanoic acid

(b) H₂S

Hydrogen Sulphide (H₂S) 

(c) Propanone

 Propanone

(d) F₂

Q.6: What is homologous series? Explain with examples.  

Answer: A group of compound of carbon having same general formula and same functional group is called ‘Homologous Series’. The members of homologous series are called homologue. For example, alcohol.

Methanol – CH₃OH

Ethanol – C₂H₅OH

Propanol – C₃H₇OH

Butanol – C₄H₉OH  

Characteristics of Homologous Series

(a) They have same general formula for all compounds.

(b) They have same functional group.

(c) They have same chemical but different physical properties.

(d) They have difference of –CH₂ between two successive members.

(e) Difference between masses of two successive members is 14 amu.

Q.7: How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?

Answer: Ethanol and Ethanoic acid be differentiated on the basis of their following properties –

(i) Ethanol is a liquid at room temperature with a pleasant smell. Ethanoic acid has a melting point of 17^OC. Since it is below the room temperature so, it freezes during winter. Moreover, ethanoic acid has a smell like vinegar.

(ii) Ethanol does not react with metal carbonates while, ethanoic acid reacts with metal carbonates to form salt, water and carbon dioxide. For example,

2CH₃COOH  +  Na₂CO₃  -->  2CH₃COONa  +  CO₂  +  H₂O    

(iii) Ethanol does not react with NaOH while ethanoic acid reacts with NaOH to form sodium ethanoate and water. For example,

CH₃COOH  +  NaOH  -->  CH₃COONa  +  H₂O

(iv) Ethanol is oxidized to give ethanoic acid in presence of acidified KMnO₄ while, no reaction takes place with ethanoic acid in presence of acidified KMnO₄.

Q.8: Why does micelle formation take place when soap is added to water? Will a micelle be formed in other solvents such as ethanol also?

Answer: Soap molecule consists of two parts – hydrophobic and hydrophilic. Hydrophilic part is the ionic end of the soap molecule which is soluble in water. Hydrophobic part is the organic end and is insoluble in water. Since dirt contains organic mars so, hydrophobic part entraps dirt and hydrophilic part remains suspended in water. Thus, many more molecules of soap are attached to dirt having their one end suspended in water form clusters. These clusters with entrapped dirt are known as micelle.

Since ethanol is not as polar as soap, so micelles will not be formed in other solvents such as ethanol.            

Q.9: Why are carbon and its compounds used as fuels for most applications?

Answer: Carbon and its compounds give large amount of heat on combustion due to high percentage of carbon and hydrogen. Carbon compounds used as fuel have optimum ignition temperature with high calorific values and are easy to handle. Their combustion can e controlled. Therefore, carbon and its compounds are used as fuels.  

Q.10: Explain the formation of scum when hard water is treated with soap.

Answer: Soap is a sodium or potassium salt of long chain fatty acids. Hard water contains soluble salts of Ca and Mg. When soap is dissolved in hard water these calcium and magnesium ions displace sodium and potassium ions from soap and thus, insoluble salts of Ca⁺² and Mg⁺² are formed which are called scum.

Ca⁺²  +  2RCOONa  --> (RCOO)₂Ca  +  2Na⁺      

Mg ²⁺  +  RCOONa  --> (RCOO)₂Mg  +  2Na⁺

Q.11: What change will you observe if you test soap with litmus paper (red and blue)?

Answer: Soap solution will turn red litmus paper blue while there will be no effect on blue litmus paper indicating that soaps are basic in nature.

Q.12: What is hydrogenation? What is its industrial application?

Answer: The addition of hydrogen to an unsaturated hydrocarbon is called Hydrogenation. This process takes place in the presence of nickel or palladium metal as catalyst.

Industrial application of hydrogenation

(1) It is used to prepare Ghee from vegetable oil.  

(2) Vegetable oil such as ground nut, cotton seed oils are unsaturated and contain double bonds. On hydrogenation in presence of a catalyst, vegetable oil produces vanaspati ghee.   

Q.13: Which of the following hydrocarbons undergo addition reaction?

C₂H₆, C₃H₈, C₃H₆, C₂H₂ and CH₄.

Answer: Among the said hydrocarbons only C₃H₆ and C₂H₂ undergo addition reaction because they are unsaturated hydrocarbons having double and triple bond between two carbon atoms respectively.

Q.14: Give a test that can be used to differentiate chemically between butter and cooking oil.

Answer: If a carbon compound decolorizes bromine water it will be an unsaturated compound. Thus, we can distinguish between a cooking oil and butter by adding Br₂ (aq) to each of them –

(a) cooking oil decolorizes bromine water, as it is unsaturated compound.

(b) butter does not decolorize bromine water, as it is saturated compound.  

Moreover, butter does not undergo catalytic hydrogenation which shows it is saturated fat while, oil being unsaturated hydrocarbon can be hydrogenated in presence of a catalyst (Ni / Pd).

Q.15: Explain the mechanism of the cleaning action of soaps.  

Answer: A soap molecule is a sodium or potassium salt of long chain carboxylic acid. It consists of two parts, i.e., a long hydrocarbon tail and a negatively charged head. The hydrocarbon tail is hydrophobic, i.e., insoluble in water and repelled by water while the polar end is soluble in water and hydrophilic in nature. When soap is applied on a wet dirty surface, the polar end of the soap molecule dissolves in water while the non-polar tail attaches it to dirt molecule, as dirt is non-polar in nature.

This result into the formation of spherical clusters called Micelle. In the micelle the hydrophobic tails are in the interior of the cluster while the ionic ends are on the surface of cluster. Due to ion-ion repulsion the micelle stay in the solution as a colloid and do not come together to precipitate. Thus, an emulsion is found which helps to dissolve dirt in water and it is finally washed with running water.

CARBON AND ITS COMPOUNDS – Further study

·   Carbon and its Compounds - Solutions of In-Text Questions | Class X, NCERT (CBSE) Science – Chemistry

·    Class X, NCERT (CBSE) Science - Chemistry | Carbon and its Compounds -  MCQs

·    Class 10 Carbon and its Compounds | Ncert Cbse Science (Chemistry) | Hot Questions - Answers