1
JEE Advanced 2018 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
Dilution processes of different aqueous solutions, with water, are given in LIST - I. The effects of dilution of the solutions on $$\left[ {{H^ + }} \right]$$ are given in LIST - II

(Note: Degree of dissociation (a) of weak acid and weak base is $$<<1;$$ degree of hydrolysis of salt $$<<1;$$ $$\left[ {{H^ + }} \right]$$ represents the concentration of $${H^ + }$$ ions)

LIST-I LIST-II
P. (10 mL of 0.1 M NaOH + 20 mL of
0.1 M acetic acid) diluted to 60 mL
1. the value of [H+] does not change
on dilution
Q. (20 mL of 0.1 M NaOH + 20 mL of
0.1 M acetic acid) diluted to 80 mL
2. the value of [H+] changes to half
of its initial value on dilution
R. (20 mL of 0.1 M HCL + 20 mL of
0.1 M ammonia solution) diluted to
80 mL
3. the value of [H+] changes to two
times of its initial value on dilution
S. 10 mL saturated solution of Ni(OH)2
in equilibrium with excess solid
Ni(OH)2 is diluted to 20 mL (solid
Ni(OH)2 is still present after dilution).
4. the value of [H+] changes to $${1 \over {\sqrt 2 }}$$
times of its initial value on dilution
5. the value of [H+] changes to $$\sqrt 2 $$
times of its initial value on dilution


Match each process given in LIST-I with one or more effect(s) in LIST-II. The correct option is :
A
$$P - 4;Q - 2;R - 3;S - 1$$
B
$$P - 4;Q - 3;R - 2;S - 3$$
C
$$P - 1;Q - 4;R - 5;S - 3$$
D
$$P - 1;Q - 5;R - 4;S - 1$$
2
JEE Advanced 2018 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
The desired product $$X$$ can be prepared by reacting the major product of the reactions in LIST-I with one or more appropriate reagents in LIST-II (given, order of migratory aptitude: aryl > alkyl > hydrogen)

JEE Advanced 2018 Paper 2 Offline Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 58 English
The correct option is
A
$$P - 1;Q - 2,3;R - 1,4;S - 2,4$$
B
$$P - 1,5;Q - 3,4;R - 4,5;S - 3$$
C
$$P - 1,5;Q - 3,4;R - 5;S - 2,4$$
D
$$P - 1,5;Q - 2,3;R - 1,5;S - 2,3$$
3
JEE Advanced 2018 Paper 2 Offline
MCQ (Single Correct Answer)
+3
-1
LIST-I contains reactions and LIST-II contains major products.

JEE Advanced 2018 Paper 2 Offline Chemistry - Alcohols, Phenols and Ethers Question 19 English

Match the reaction in LIST-I with one or more products in LIST-II and choose the correct option.
A
$$P - 1,5;Q - 2;R - 3;S - 4$$
B
$$P - 1,4;Q - 2;R - 4;S - 3$$
C
$$P - 1,4;Q - 1,2;R - 3,4;S - 4$$
D
$$P - 4,5;Q - 4;R - 4;S - 3,4$$
4
JEE Advanced 2018 Paper 2 Offline
MCQ (More than One Correct Answer)
+3
-0.75
For a reaction, $$A\,\,\rightleftharpoons\,\,P,$$ the plots of $$\left[ A \right]$$ and $$\left[ P \right]$$ with time at temperature $${T_1}$$ and $${T_2}$$ are given below.

JEE Advanced 2018 Paper 2 Offline Chemistry - Thermodynamics Question 28 English
If $${T_2} > {T_1},$$ the correct statement(s) is (are) (Assume $$\Delta {H^ \circ }$$ and $$\Delta {S^ \circ }$$ are independent of temperature and ratio of $$lnK$$ at $${T_1}$$ to $$lnK$$ at $${T_2}$$ is greater than $${{{T_2}} \over {{T_1}}}.$$ Here $$H,$$ $$S,G$$ and $$K$$ are enthalpy, entropy, Gibbs energy and equilibrium constant, respectively.)
A
$$\Delta {H^ \circ } < 0,\Delta {S^ \circ } < O$$
B
$$\Delta {G^ \circ } < 0,\Delta {H^ \circ } > 0$$
C
$$\Delta {G^ \circ } < 0,\Delta {S^ \circ } < 0$$
D
$$\Delta {G^ \circ } < 0,\Delta {S^ \circ } > 0$$
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