Carbon and its Compounds

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Carbon and its Compounds - 10 (Special)

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Q1. The first member of the alkyne homologous series is *

1 point

methane

ethyne

ethene

propyne

Q2. In diamond, each carbon atom is bonded to four other carbon atoms to form *

1 point

a structure in the shape of a football

a rigid three-dimensional structure

a hexagonal array

a structure of a ring

Q3. Write the IUPAC Name of *

1 point

None of them

3-methylbut-1-ene

3-methylbut-2-ene

2-methylbut-3-ene

Q4. The IUPAC name of *

1 point

3,5-dimethylpentanal

2,3-dimethylpentanal

None of them

2-formyl-3-methylpentanal

Q5. Anion is formed when *

1 point

Atom loses electrons

Atom shares electrons

Proton is lost by the atom

Atom gains electrons

Q6. Ester is formed by the reaction between *

1 point

An acid and an alkene

An acid and an alcohol

A base and an alcohol

An acid and a base

Q7. Which of the following substance produces brisk effervescence with baking soda solution? *

1 point

Ethanoic acid

Table salt

Sunflower oil

Vinegar

Q8. Which of the following statements are usually correct for carbon compounds? These (i) Are good conductors of electricity. (ii) Are poor conductors of electricity. (iii) Have strong forces of attraction between their molecules. (iv) Do not have strong forces of attraction between their molecules. *

1 point

(i) and (iii)

(ii) and (iv)

(ii) and (iii)

(i) and (iv)

Q9. Oils on treating with hydrogen in the presence of palladium or nickel catalyst form fats. This is an example of *

1 point

Substitution reaction

Addition reaction

Displacement reaction

Oxidation reaction

Q10. IUPAC Name of *

1 point

3,3-dimethylpentan-2-one

3-methyl-3-ethylbutan-2-one

2-ethyl-2-methylpentan-3-one

None of them

Q11. A soap molecule has a *

1 point

hydrophobic head and hydrophilic tail

hydrophilic head and hydrophobic tail

hydrophilic head and hydrophilic tail

hydrophobic head and hydrophobic tail

Q12. —CHO represents the functional group *

1 point

Ketone

Carboxylic acid

Alcohol

Aldehyde

Q13. The soap molecule has a *

1 point

-vely charged hydrophobic end

-vely charged hydrophilic end

+vely charged hydrophobic end

+vely charged hydrophilic end

Q14. Which of the following is used to oxidise ethanol to ethanoic acid? *

1 point

LiAlH4

Acidified K2Cr2O7

H2/Ni

All of above

Q15. The by product of soap is *

1 point

ethene

isoprene

glycerol

ethylene glycol

Q16. IUPAC name of CH3C(CH3)2CH2CH3 *

1 point

1,1,1-trimethyl propane

2, 2-dimethyl butane

2-ethyl-2-methyl propane

2, 2-methyl butane

Q17. Identify the unsaturated compounds from the following. (i) Propane (ii) Propene (iii) Propyne (iv) Chloropropane *

1 point

(ii) and (iv)

(ii) and (iii)

(iii) and (iv)

(i) and (ii)

Q18. Vinegar is a solution of *

1 point

50%- 60% acetic acid in water

5% - 8% acetic acid in alcohol

50% - 60% acetic acid in alcohol

5% - 8% acetic acid in water

Q19. Which of the following does not belong to the same homologous series? *

1 point

C3H8

C4H8

C2H6

CH4

Q20. A functional group mainly determines the *

1 point

none of these

chemical properties

physical properties

both

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