Question 2 :
The rate of reaction for the reaction between ionic compounds cannot be determined because they are generally:

Question 3 :
For the reaction $2A+B\rightarrow 3C+D$ which of the following does not express the reaction rate?<br/>

Question 4 :
If reaction A and B are given with Same temperature and same concentration but rate of $A$ is doublethan $B$. Pre exponential factor is same for both the reaction then difference in activation energy $E_{A} -E_{B}$is?<br>

Question 5 :
Energy produced in a chemical reaction is a specific type of :<br/>

Question 6 :
The rate for the reaction between ionic compounds cannot be determined because they are generally:

Question 7 :
The branch of chemistry which deals with the study of chemical reaction rate is known as :

Question 9 :
The rate of change of concentration of any one of the reactants or products at a particular moment of time is known as the ?

Question 11 :
The reaction,<br>$ 2NO (g) + O_2 (g) \leftrightharpoons 2NO_2 (g) $ is first order. If volume of reaction vessel is reduced to $ \dfrac {1}{3} ,$ the rate of reaction would be :

Question 12 :
Chemical substances slowing the rate of chemical reaction is called as :

Question 13 :
In a reaction mechanism consisting of elementary reaction steps where the relative rate of each is given, which of the following is most likely to be the rate-determining step?

Question 15 :
Consider the reaction, $2N_{2}O_{5}\rightarrow 4NO_{2} + O_{2}$<br/>In the reaction $NO_{2}$ is being formed at the rate of $0.0125\ mol\ L^{-1}s^{-1}$. What is the rate of reaction at this time?

Question 17 :
The mechanism of the reaction: $Nu^- + R - X \rightarrow R - Nu + X^-$ is:<br>$Nu^- + R - X \rightarrow$ [Transition state] (slow) [Transition state] $\rightarrow Nu - R + X^-$ (fast) The rate of reaction can be increased by:

Question 19 :
For the reaction: $2A + B \rightarrow 3C + D$. Which of the following does not express theiraction rate?<br>

Question 22 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which of the following energy changes occur in galvanic cell?</p>

Question 23 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which of the following statements is true for fuel cells ?</p>

Question 25 :
When the electric current is passed through a cell having an electrolyte, the positive ions move towards cathode and negative ions towards the anode. If the cathode is pulled out of the solution then____________.

Question 26 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Which one of the following cells can convert chemical energy of $O_{2}$ and $H_{2}$ directly into electrical energy:</p>

Question 28 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">Following are some of the facts about dry cell</p><p class="wysiwyg-text-align-left">i) It is also called Leclanche cell</p><p class="wysiwyg-text-align-left">ii) It is also called Daniel cell</p><p class="wysiwyg-text-align-left"><span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">iii) Electrolyte is a moist paste of NH$_{4}$Cl<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">and ZnCl$_{2}$<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">in starch</p><p class="wysiwyg-text-align-left">iv) Cathodic reaction is</p><p class="wysiwyg-text-align-left"><span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">MnO<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">$_{2}$<span class="wysiwyg-font-size-xx-small"><span class="wysiwyg-font-size-xx-small"> <span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">(s) + NH$_{4}^{+}$<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">&#160;+ e$^{-}\rightarrow $<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small">MnO(OH)+NH$_{3}$</p><span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p>Select correct facts :</p>

Question 29 :
Assertion:&#160;Dry cell is a primary&#160;cell and lead storage cell is a&#160;secondary&#160;cell.<br/>Reason: A primary cell can only be used once while secondary cells are rechargeable.<br/>

Question 30 :
KCl can be used in salt bridge as electrolyte in which of the following cells?

Question 31 :
Statement $1$: In an electrolytic cell, the anode becomes positive and the cathode becomes negative.<br/>Statement $2$: Anions migrate to the anode and cations migrate to the cathode.

Question 34 :
The reaction<br/>$1/2H_2(g)\, +\, AgCl(s)\, \rightarrow\, H^{\bigoplus}(aq)\, +\, Cl^{\circleddash}(aq)\, +\, Ag(s)$ occurs in the galvanic cell:

Question 35 :
The&#160;potential of a hydrogen electrode in a solution with $p{OH} = 4$ at $25^{\circ}C$&#160;is:

Question 36 :
Assertion: The standard potential of hydrogen half-cell is zero at all conditions of temperature and pressure.<br/>Reason: Standard conditions require 298 K temperature and 1 atm pressure.<br/>

Question 37 :
Among the following cells, which of the following are primary cells?<br/>(I) Leclanche cell<br/>(II) Nickle-Cadmium cell<br/>(III) Lead Storage battery<br/>(IV) Mercury cell<br/>

Question 38 :
<span class="wysiwyg-font-size-small"><span class="wysiwyg-font-size-small"><p class="wysiwyg-text-align-left">In an electro chemical process, a salt bridge is used</p><p class="wysiwyg-text-align-left">a) to maintain electro neutrality in each solution.</p><p class="wysiwyg-text-align-left">b) to complete the circuit so that current can flow</p><p>c) as an oxidising agent</p><p>d) as a colour indicator</p>

Question 39 :
Which of the following is always true regarding the spontaneity of reaction occuring in a galvanic cell?

Question 40 :
The electrolysis of aqueous solution of $Cu{Br}_{2}$ using platinum electrode would leads to: