1
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

The correct statement with respect to the complexes $$\mathrm{Ni}(\mathrm{CO})_4$$ and $$[\mathrm{Ni}(\mathrm{CN})_4]^{2-}$$ is

A
nickel is in the same oxidation state in both.
B
Both have square planar geometry.
C
have square planar and tetrahedral geometry, respectively.
D
have tetrahedral and square planar geometry, respectively.
2
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

The decreasing order of nucleophilicity among the following nucleophiles is

BITSAT 2023 Chemistry - General Organic Chemistry Question 1 English

A
III, II, I, IV
B
II, III, I, IV
C
IV, III, II, I
D
I, II, III, IV
3
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Identify product $$(Z)$$ in the series, of reaction

$$\mathrm{CH}_2=\mathrm{CH}_2 \xrightarrow{\mathrm{HBr}} X \xrightarrow{a q . \mathrm{KOH}} Y \xrightarrow[\mathrm{I}_2 \text { excess }]{\mathrm{Na}_2 \mathrm{CO}_3} Z$$

A
$$\mathrm{C}_2 \mathrm{H}_5 \mathrm{I}$$
B
$$\mathrm{C}_2 \mathrm{H}_5 \mathrm{OH}$$
C
$$\mathrm{CHI}_3$$
D
$$\mathrm{CH}_3 \mathrm{CHO}$$
4
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Sulphur does not exist as $$\mathrm{S}_2$$ molecule because

A
it is not able to constitute $$p \pi-p \pi$$ bonds
B
it is less electronegative
C
it has ability to exhibit catenation
D
of tendency to show variable oxidation states
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