Identify X in the following:

1.  H3CCN

2.  H3CCO2NH4

3.  (H3CCO)2O

4.  H3CCONH2

View Answer  
4
Correct Answer :

H<sub>3</sub>CCONH<sub>2</sub>


Explanation :
No Explanation available for this question

Carbylamine test is used to detect which one of the following

1.  C6H5CHO

2.  C6H5CO2H

3.  C6H5NH2

4.  C6H5OH

View Answer  
4
Correct Answer :

C<sub>6</sub>H<sub>5</sub>NH<sub>2</sub>


Explanation :
No Explanation available for this question

Proteins are

1.  Polysaccharides

2.  Polynucleotides

3.  Polypeptides

4.  Triglyeerides

View Answer  
4
Correct Answer :

Polypeptides


Explanation :
No Explanation available for this question

Scurvy is caused by the deficiency of which vitamin

1.  C

2.   B1

3.   D

4.   B2

View Answer  
4
Correct Answer :

C


Explanation :
No Explanation available for this question

Which one of the following is a food preservative

1.  C6H5-CO2Na

2.   C6H4-OH  |CO2C2H5

3.   C6H4-CO2H |OCOCH3

4.  C6H4-OH |NHCOCH3

View Answer  
4
Correct Answer :

C<sub>6</sub>H<sub>5</sub>-CO<sub>2</sub>Na


Explanation :
No Explanation available for this question

The number of radial nodes present in the radial probability distribution curves for the orbit wave function with quantum numbers n = 4, l = 0 and m = 0 is

1.  4

2.  3

3.  2

4.  1

View Answer  
4
Correct Answer :

3


Explanation :
No Explanation available for this question

If the uncertainty in velocities of two particles A and B with mass 1.0 x 10-27 Kg and 1.0 x 10-31 kg respectively is the same, the ratio of uncertainty in the positions of A and B is

1.  1000 : 1

2.  10,000 : 1

3.  1 : 1000

4.  1 : 10,000

View Answer  
4
Correct Answer :

1 : 10,000


Explanation :
No Explanation available for this question

With reference to the diagram given , the van der Waals radius is equal to

1.  A - A'

2.  B - A

3.  B - D

4.  A - C

View Answer  
4
Correct Answer :

A - C


Explanation :
No Explanation available for this question

In which of the following , the bond angle is the lowest

1.  H3O(+)

2.  N(+)H4

3.  F2O

4.  BCl3

View Answer  
4
Correct Answer :

F<sub>2</sub>O


Explanation :
No Explanation available for this question

In the Born-Haber cycle of the given reaction Na(s) + (1/2)Cl2(g) →NaCl(s)the number of endothermic and exothermic stages respectively are

1.  2,3

2.  3,1

3.  3,2

4.  2,2

View Answer  
4
Correct Answer :

3,2


Explanation :
No Explanation available for this question
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