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Q 1. In order to form branching, an organic compound must have a minimum of:
four carbon atoms
three carbon atoms
five carbon atoms
any number of carbon atoms
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Q 2. The number of Sigma bond and Pi bond present in Acetylene (CH {tex}\equiv {/tex} CH) is :
1,2
3,2
2,3
1,4
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Q 3. Alcohols can be produced by the hydration of:
alkenes
alkynes
alkanes
acids
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Q 4. IUPAC name of first member of homologous series of ketones is :
ethanone
methanone
propanone
butanone
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Q 5. Enzyme which converts starch into glucose is :
Zymase
Maltase
Diastase
Invertase
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Q 6. Rectified spirit is :
50 percent ethanol
80 percent ethanol
95 percent ethanol
100 percent ethanol
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Q 7. Soaps are formed by the saponification of:
alcohols
simple ester
carboxylic acids
glycerides
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Q 8. An example of soap is:
{tex}\mathrm{C_{15}H_{31}COONa}{/tex}
{tex}\mathrm{CH_3COONa}{/tex}
{tex}\mathrm{C_6H_5COONa}{/tex}
{tex}\mathrm{C_{17}H_{35}OSO_3Na}{/tex}
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Q 9. A covalent bond is formed when:
combining atoms share the electron pairs
combining atoms are attracted by each other
the ions of the combining atoms are attracted by electrostatic force of attraction
one atom donates a pair of electrons to another atom
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Q 10. Which of the following compound is covalent ?
{tex}\mathrm{H_2}{/tex}
{tex}\mathrm{KCl}{/tex}
{tex}\mathrm{BaC_2}{/tex}
{tex}\mathrm{Na_2S}{/tex}
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Q 11. Aldehydes show with each other
chain isomers
position isomers
Functional isomers
Both (A) & (C)
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Q 12. {tex}\mathrm{Assertion}{/tex}: Carbon form long chain compound.
{tex}\mathrm{Reason}{/tex}: Its covalency is four.
Both Assertion and Reason are true and Reason is the correct explanation of 'Assertion'
Both Assertion and Reason are true and Reason is not the correct explanation of 'Assertion'
Assertion is true but Reason is false
Assertion is false but Reason is true
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Q 13. {tex}\mathrm{Assertion}{/tex}: Unsaturated hydrocarbon give addition reaction.
{tex}\mathrm{Reason}{/tex}: They have pi-bond.
Both Assertion and Reason are true and Reason is the correct explanation of 'Assertion'
Both Assertion and Reason are true and Reason is not the correct explanation of 'Assertion'
Assertion is true but Reason is false
Assertion is false but Reason is true
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Q 14. {tex}\mathrm{Assertion}{/tex}: Methane, ethane and propane are said to form a homalogous series.
{tex}\mathrm{Reason}{/tex}: They all are hydrocarbons.
Both Assertion and Reason are true and Reason is the correct explanation of 'Assertion'
Both Assertion and Reason are true and Reason is not the correct explanation of 'Assertion'
Assertion is true but Reason is false
Assertion is false but Reason is true
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Q 15.
| Column I | Column II |
|---|---|
| (A) Alkane | (P) {tex}\mathrm{C_{12}H_{24}}{/tex} |
| (B) Alkene | (Q) {tex}\mathrm{C_{8}H_{14}}{/tex} |
| (C) Alkyne | (R) {tex}\mathrm{C_{8}H_{17}OH}{/tex} |
| (D) Alcohol | (S) {tex}\mathrm{C_{16}H_{34}}{/tex} |
A - Q
B - P
C - S
D - S
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Q 16. The IUPAC name of: {tex}\mathrm{CH_3 - C(CH_3)(OH)CH_2 - CH(CH_3)CH_3}{/tex} is -
2,4-dimethyl pentane-2-ol
2,4-dimethyl pentane-4-ol
2,2-dimethyl butane
butanol-2-one
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Q 17. The maximum number of carbon atoms arranged linearly in the molecule: {tex}\mathrm{CH_3-C + C-CH= CH_2}{/tex} is
5
4
3
2
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Q 18. The reaction of {tex}\mathrm{C_2H_5OH + 2Na\equiv 2C_2H_5ONa + H_2}{/tex} suggests that ethanol is :
Acidic in nature
Basic
Neutral
Amphoteric
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Q 19. Glacial acetic acid is a -
frozen acetic acid
5-8% of solution of acetic acid in water
mixture of acetic acid and alcohol
None of these
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Q 20. Which is not a carbon compound -
wood
cooking gas
paper
cement
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Q 21. Which is not a property of graphite -
It melts at 800°C
It is a smooth crystallined form of carbon
It is a good conductor of electricity
It forms a black sign on paper
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Q 22. Which of the following is the purest form of carbon -
Charcoal
Coal
Diamond
Graphite
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Q 23. Alkynes have in their molecule -
Four hydrogen atoms more than in a molecule of corresponding alkane
Two hydrogen atoms less than in a molecule of corresponding alkene
Two hydrogen atoms less than in a molecule of corresponding alkane
Two hydrogen atoms less than in a molecule of corresponding alkene
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Q 24. The fruity smell is of a/an -
aldehyde
ketone
alcohol
ester
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Q 25. Which of these contains the carbonyl group?
Ketones
Aldehydes
Esters
All of these