The number of sigma bonds in ethane formed by the overlap of SP3 and S orbitals is

1.  5

2.  6

3.  7

4.  4

View Answer  
4
Correct Answer :

6


Explanation :
No Explanation available for this question

From the following data for the decomposition of N2O5 at 300C, find out the rate constant(in min-l) Volume of O2 after 10 minutes of the reaction = 90 mlVolume of O2 after completion of the reaction =   100 ml

1.  2.303

2.  0.2303

3.  0.02303

4.  23.03

View Answer  
4
Correct Answer :

0.2303


Explanation :
No Explanation available for this question

The two enzymes present in yeast that are responsible for the formation of ethyl alcohol from molasses in the fermentation process are

1.  Invertase, zymase

2.  Invertase, diastase

3.  Zymase. diastase

4.  Invertase, maltase

View Answer  
4
Correct Answer :

Invertase, diastase


Explanation :
No Explanation available for this question

What is the amount of heal liberated (in k cal) when one mole of aqueous NaOH reacted with one mole of aqueous HCl solution

1.  22.4

2.  13.7

3.  2.303

4.  0.693

View Answer  
4
Correct Answer :

13.7


Explanation :
No Explanation available for this question

Which one of the following reaction conditions are used for preparing diethyl ether from ethyl alcohol

1.  HI / 2000C

2.  Conc.H2SO4 / 1400C

3.  NaOH / 700C

4.  NaOC2H5 / 270C

View Answer  
4
Correct Answer :

Conc.H<sub>2</sub>SO<sub>4</sub> / 140<sup>0</sup>C


Explanation :
No Explanation available for this question

The equilibrium constant for the reaction H2O(g) + CO(g)=H2(g)+CO2(g) is 64. The rate constant for the forward reaction is 160, the rate constant for the backward reaction is

1.  0.4

2.  2.5

3.  6.2

4.  10.24 x 103

View Answer  
4
Correct Answer :

2.5


Explanation :
No Explanation available for this question

Aniline reacts with chloroform in the presence of alkali to give a product with very bad smell. The test is called

1.  Isocyanide test

2.  Silver mirror test

3.  Baeyer's test

4.  Lucas test

View Answer  
4
Correct Answer :

Isocyanide test


Explanation :
No Explanation available for this question

An organic compound reacts (i) with metallic sodium to liberate hydrogen and (ii) with Na2CO3 solution to liberate CO2. The compound is

1.  An alcohol

2.  A carboxylic acid

3.  An ether

4.  An ester

View Answer  
4
Correct Answer :

A carboxylic acid


Explanation :
No Explanation available for this question

The compound formed when introbenzene is reduced with LiAlH4 is

1.  C6H5NH2

2.  C6H5NHOH

3.  C6H5N ═ NC6H5

4.  C6H5NH NHC6H5

View Answer  
4
Correct Answer :

C<sub>6</sub>H<sub>5</sub>N &#9552; NC<sub>6</sub>H<sub>5</sub>


Explanation :
No Explanation available for this question

At 270C one mole of in ideal gas exerted a pressure of 0.821 atmospheres. What is its Volume in litres (R = 0.0821 lit.atm.mol-1 K-1)

1.  300

2.  30

3.  0.3

4.  3

View Answer  
4
Correct Answer :

30


Explanation :
No Explanation available for this question
Previous Next

Interview Questions

MongoDB
Java Script
Node JS
PHP
JQuery
Python