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1
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
2
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

Which of the following oxides is amphoteric in character?

A
$$\mathrm{SnO}_2$$
B
$$\mathrm{SiO}_2$$
C
$$\mathrm{CO}_2$$
D
$$\mathrm{CaO}$$
3
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

Ge (II) compounds are powerful reducing agents whereas Pb (IV) compounds are strong oxidants. It can be because

A
Pb is more electropositive than Ge.
B
ionisation potential of lead is less than that of Ge.
C
ionic radii of Pb2+ and Pb4+ are larger than that of Ge2+ and Ge4+.
D
more pronounced inert pair effect in lead has.
4
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The number of 3C$$-$$2e$$-$$ bonds present in diborane is

A
1
B
2
C
3
D
4
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