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Formaldehyde is used:...

Formaldehyde is used:

A

as antiseptic and germicide

B

for making synthetic plastics and resins

C

for the preservation of biological specimens

D

all of the above

Text Solution

Verified by Experts

The correct Answer is:
D
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OP TANDON-ALDEHYDES AND KETONES -OBJECTIVE QUESTIONS (LEVEL -A)
  1. An organic compound X when (C(5)H(12)O) which gives C(5)H(10) on heat...

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  2. When formaldehyde is treated with methanol in presence of dry HCI gas ...

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  3. Formaldehyde is used:

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  4. Polarization of electrons in acrolein may be written as:

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  5. Acetoacetice ester on hydrolysis by boiling with dil. Yields:

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  6. In the following reaction: R-MgBr+HC(OEt)(3)overset("Ether")rarrover...

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  7. Acetone on condensation gives:

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  8. A carbonyl compound with molecular mass 86, does not reduce Fehling's ...

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  9. Identify the prodcut 'X' in the following reaction : H(3)C-overset(O)...

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  10. CH(3)CH=CHCHO is oxidised to CH(3)-CH=CHCOOH, using oxidising agent as...

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  11. Propan on aldol condensation with aqueous K(2)CO(3) gives mainly :

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  12. A ketone gives a yellow precipitate, when treated with I(2)in an alkal...

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  13. The product (s) via - oxymercuration (HgSO(4)+H(2)SO(4)) of 1- butyne...

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  14. Ketones (R(1)COR(2)):R(1)=R(2)=alkyl group, can be obtained in one ste...

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  15. Among the given compounds, the most susceptible to nucleophilic attack...

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  16. In the Cannizzaro reaction given below: 2Ph-CHO overset(overset(Θ)OH...

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  17. In the following sequence of reactions, the alkene affords the compoun...

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  18. Which of the following reactions will not result in the formation of c...

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  19. In a Cannizaro reaction the intermediate that will be the best hydride...

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  20. Complete the following reaction

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