Reduction of aldehydes and ketones into hydrocarbons using zinc amalgam and conc.HCl is called:

1.  Clemmensen reduction

2.  Cope reduction

3.  Dow reduction

4.  Wolff-Kishner reduction

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4
Correct Answer :

Clemmensen reduction


Explanation :
No Explanation available for this question

Which one of the following on treatment with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid

1.  C6H5CH2CHO

2.  C6H5CHO

3.  CH3CH2CH2CHO

4.  

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4
Correct Answer :

C6H5CHO


Explanation :
No Explanation available for this question

Which one of the following vitamins is water-soluble

1.  Vitamin-B

2.  Vitamin-E

3.  Vitamin-K

4.  Vitamin-A

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4
Correct Answer :

Vitamin-B


Explanation :
No Explanation available for this question

RNA and DNA are chiral molecules,their chirality is due to:

1.  L-sugar component

2.  chiral bases

3.  chiral phosphate ester units

4.  D-sugar component

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4
Correct Answer :

D-sugar component


Explanation :
No Explanation available for this question

Which of the following represents the correct order of the acidity in the given compounds

1.  CH3COOH>BrCH2COOH>ClCH2COOH>FCH2COOH

2.  FCH2COOH>CH3COOH>BrCH2COOH>ClCH2COOH

3.  BrCH2COOH>ClCH2COOH>FCH2COOH>CH3COOH

4.  FCH2COOH>ClCH2COOH>BrCH2COOH>CH3COOH

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4
Correct Answer :

FCH2COOH>ClCH2COOH>BrCH2COOH>CH3COOH


Explanation :
No Explanation available for this question

The reaction: Which of the following compounds will be formed

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

pA and pB are the vapour pressure of pure liquid components. A and B, respectively of an ideal binary solution. If xA represents the mole fraction of component A, the total pressure of the solution will be

1.  PB +XA (PA-PB)

2.  PA +XA (PB-PA)

3.  PA +XA (PA-PB)

4.  PB +XA (PB-PA)

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4
Correct Answer :

PB +XA (PA-PB)


Explanation :
No Explanation available for this question

Which one of the following is not a condensation polymer

1.  Neoprene

2.  Melamine

3.  Glyptal

4.  Dacron

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4
Correct Answer :

Neoprene


Explanation :
No Explanation available for this question

A metal crystallizes with a face-centered cubic lattice. The edge of the unit cell is 408 pm. The diameter of the metal atom is

1.  204 pm

2.  288 pm

3.  408 pm

4.  144 pm

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4
Correct Answer :

288 pm


Explanation :
No Explanation available for this question

Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value

1.  BeCl2

2.  BaCl2

3.  AlCl3

4.  LiCl

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4
Correct Answer :

BaCl2


Explanation :
No Explanation available for this question
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