For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, ΔU and w corresponds to

1.  ΔU < 0, w = 0

2.  ΔU < 0, w < 0

3.  ΔU > 0, w = 0

4.  ΔU > 0, w > 0

View Answer  
4
Correct Answer :

ΔU < 0, w = 0


Explanation :
No Explanation available for this question

Which of the following is a carbonate ore

1.  Pyrolusite

2.  Malachite

3.  Diaspore

4.  Cassiterite

View Answer  
4
Correct Answer :

Malachite


Explanation :
No Explanation available for this question

The major product formed in the following reaction is

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Which one of the following biomolecules is insoluble in water

1.  a-keratin

2.   Haemoglobin

3.  Ribonuclease

4.  Adenine

View Answer  
4
Correct Answer :

a-keratin


Explanation :
No Explanation available for this question

Among the following which one does not act as an intermediate in Hofmann rearrangement

1.  RNCO

2.  RCON

3.  RCO HBr

4.  RNC

View Answer  
4
Correct Answer :

RNC


Explanation :
No Explanation available for this question

α - particles can be detected using

1.  thin aluminium sheet

2.  barium sulphate

3.  zinc sulphide screen

4.  gold foil

View Answer  
4
Correct Answer :

zinc sulphide screen


Explanation :
No Explanation available for this question

The diamagnetic species is

1.  [Ni(CN)4]2-

2.  [NiCl4]2-

3.   [CoCl4]2-

4.  [CoF6]2-

View Answer  
4
Correct Answer :

[Ni(CN)4]2-


Explanation :
No Explanation available for this question

The number of P—O—P bridges in the structure of phosphorus pentoxide and phosphorus trioxide are respectively

1.  6, 6

2.  5, 5

3.  5, 6

4.  6, 5

View Answer  
4
Correct Answer :

6, 6


Explanation :
No Explanation available for this question

An endothermic reaction with high activation energy for the forward reaction is given by the diagram :

1.  

2.  

3.  

4.  

View Answer  
4
Correct Answer :


Explanation :
No Explanation available for this question

Among the following the strongest nucleophile is

1.  C2H5SH

2.  CH3COO-

3.  CH3NH2

4.  NCCH-2

View Answer  
4
Correct Answer :

C2H5SH


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python