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

Two half cell reactions are given below.

$$C{o^{3 + }} + {e^ - } \to C{o^{2 + }},\,\,\,\,\,\,\,\,\,E_{C{o^{2 + }}/C{o^{3 + }}}^0 = - 1.81\,V$$

$$2A{l^{3 + }} + 6{e^ - } \to 2Al(s),\,\,\,E_{Al/A{l^{3 + }}}^0 = + 1.66\,V$$

The standard EMF of a cell with feasible redox reaction will be :

A
$$-$$3.47 V
B
+7.09 V
C
+0.15 V
D
+3.47 V
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

Match List-I with List-II :

List-I
(Compounds)
List-II
(Molecular formula)
(a) Borax (i) NaBO$$_2$$
(b) Kernite (ii) Na$$_2$$B$$_4$$O$$_7$$ . 4H$$_2$$O
(c) Orthoboric acid (iii) H$$_3$$BO$$_3$$
(d) Borax bead (iv) Na$$_2$$B$$_4$$O$$_7$$ . 10H$$_2$$O

Choose the correct answer from the options given below :

A
(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)
B
(a) - (iv), (b) - (ii), (c) - (iii), (d) - (i)
C
(a) - (ii), (b) - (iv), (c) - (iii), (d) - (i)
D
(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

The correct order of first ionization enthalpy for the given four elements is :

A
C < F < N < O
B
C < N < F < O
C
C < N < O < F
D
C < O < N < F
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1
Change Language

Predict the order of reactivity of the following four isomers towards SN2 reaction.

(I) CH3CH2CH2CH2Cl

(II) CH3CH2CH(Cl)CH3

(III) (CH3)2CHCH2Cl

(IV) (CH3)3CCl

A
(IV) > (II) > (III) > (I)
B
(IV) > (III) > (II) > (I)
C
(I) > (II) > (III) > (IV)
D
(I) > (III) > (II) > (IV)
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