What is the conjugate base of HSO4-

1.  H2SO4

2.  HSO42-

3.  SO42-

4.  H+

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4
Correct Answer :

SO<sub>4</sub><sup>2-</sup>


Explanation :
No Explanation available for this question

Which of the following is not correct

1.  Enthalpy of physical adsorption is less compared to enthalpy of chemical adsorption

2.  Milk is an example for emulsion

3.  Physical adsorption increases with the Increase in temperature

4.  Smoke is an aerosol

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4
Correct Answer :

Physical adsorption increases with the Increase in temperature


Explanation :
No Explanation available for this question

Observe the following reaction:A(g) + 3B(g) → 2C(g)The rate of this reaction [-(d[A])/dt] is 3x10-3mol L-1 min-1. What is the value of -(d[B])/dt in mol L-1 min-1

1.  3x10-3

2.  9x10-3

3.  10-3

4.  1.5x10-3

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4
Correct Answer :

9x10<sup>-3</sup>


Explanation :
No Explanation available for this question

Which of the following can give a Grignand reagent when reacted with magnesium in dry ether

1.  C2H6

2.  C2H5Cl

3.  C2H5OH

4.  C2H5CN

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4
Correct Answer :

C<sub>2</sub>H<sub>5</sub>Cl


Explanation :
No Explanation available for this question

Consider the following reactions:I. Al + NaOH + H2O →II. F2 + NaOH (con.) →III. NaOH + P (white) + H2O →The correct set of reactions which give gaseous product is:

1.  I, II and III

2.  only I and II

3.  only I and III

4.  only II and III

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4
Correct Answer :

I, II and III


Explanation :
No Explanation available for this question

Acidified KMnO4 oxidises oxalic acid to CO2. What is the volume (in litres) of 10-4M KMnO4 required to completely oxidise 0.5L of 10-2M oxalic acid in acid medium

1.  125

2.  1250

3.  200

4.  20

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4
Correct Answer :

20


Explanation :
No Explanation available for this question

What is X in the following reactionKHSO4 + F2 →  HF + X

1.  K2SO4

2.  K2S2O4

3.  K2S2O2

4.  K2S2O8

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4
Correct Answer :

K<sub>2</sub>S<sub>2</sub>O<sub>8</sub>


Explanation :
No Explanation available for this question

What is the equation for the equilibrium constant (Kc) for the following reaction

1.  

2.  

3.  

4.  

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4
Correct Answer :


Explanation :
No Explanation available for this question

Which of the following is not correct

1.  Al reacts with NaOH and liberate H2

2.  AlCl3 is a Lewis acid

3.  Al is used in the manufacture of electrical cables

4.  NaOH is used during Hall's process of purification of bauxite

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4
Correct Answer :

NaOH is used during Hall's process of purification of bauxite


Explanation :
No Explanation available for this question

The reagents and the reaction conditions used in the formation of benzene diazonium chloride from aniline are:

1.  Aq.NaNO3, HCl, 250C

2.  Dil.HCl, 0-50C

3.  Aq.Nacl, HCl,200C

4.  Aq.NaNO2, HCl, 0-50C

View Answer  
4
Correct Answer :

Aq.NaNO2, HCl, 0-50C


Explanation :
No Explanation available for this question
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