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1.

 In the reaction,  $CH_{3}COOH$    $\underrightarrow{LiAlH_{4}}$  A   $\underrightarrow{PCl_{5}}$ B   $\underrightarrow{Alc.KOH}$  C .The product C is


A) acetaldehyde

B) acetylene

C) ethylene

D) acetyl chloride



2.

Which one of the following bases is not present in DNA?


A) Quinoline

B) Adenine

C) Cytosine

D) Thymine



3.

 Which one is classified as a condensation polymer?


A) Dacron

B) Neoprene

C) Teflon

D) Acrylonitrile



4.

For which of the following molecule significant   $\mu\neq 0$   ?

1732021716_ci.JPG


A) Only I

B) I and II

C) Only III

D) III and IV



5.

 Considering the basic strength of amines in an aqueous solution, which one has the smallest pKb, value?


A) $ (CH_{3})_{2}NH$

B) $ CH_{3}NH_{2}$

C) $ (CH_{3})_{32}N$

D) $ C_{6}H_{5}NH_{2}$



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