1
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Na2B4O7 $$\buildrel {heat} \over \longrightarrow $$ X + NaBO2

in the above reaction the product "X" is :

A
NaB3O5
B
H3BO3
C
B2O3
D
Na2B2O5
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

One mole of an ideal gas at 300 K is expanded isothermally from 1 L to 10 L volume. $$\Delta$$U for this process is :

(Use R = 8.314 J k$$-$$1 mol$$-$$1)

A
0 J
B
1260 J
C
2520 J
D
5040 J
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Match List-I with List-II :

List-I
(Complexes)
List-II
(Types)
(a) $$[Co{(N{H_3})_5}N{O_2}]C{l_2}$$ and $$[Co{(N{H_3})_5}ONO]C{l_2}$$ (i) ionisation isomerism
(b) $$[Cr{(N{H_3})_6}][Co{(CN)_6}]$$ and $$[Cr{(CN)_6}][Co{(N{H_3})_6}]$$ (ii) coordination isomerism
(c) $$[Co{(N{H_3})_5}(S{O_4})]Br$$ and $$[Co{(N{H_3})_5}Br]S{O_4}$$ (iii) linkage isomerism
(d) $$[Cr{({H_2}O)_6}]C{l_3}$$ and $$[Cr{({H_2}O)_5}Cl]C{l_2}\,.\,{H_2}O$$ (iv) solvate isomerism

Choose the correct answer from the options given below :

A
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
B
(a)-(iii), (b)-(i), (c)-(ii), (d)-(iv)
C
(a)-(ii), (b)-(iii), (c)-(iv), (d)-(i)
D
(a)-(iii), (b)-(ii), (c)-(i), (d)-(iv)
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus

Shown below are adsorption isotherms for a gas 'X' at temperatures T1, T2 and T3 :

NEET 2022 Phase 2 Chemistry - Surface Chemistry Question 4 English

p and $${x \over m}$$ represent pressure and extent of adsorption, respectively. The correct order of temperatures for the given adsorption is :

A
$${T_1} = {T_2} > {T_3}$$
B
$${T_1} > {T_2} > {T_3}$$
C
$${T_3} > {T_2} > {T_1}$$
D
$${T_1} = {T_2} = {T_3}$$
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