1
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Which one of the following compounds is used as a chemical in certain type of fire extinguishers?

A
Baking soda
B
Soda ash
C
Washing soda
D
Caustic soda
2
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
PCl5 is well known, but NCl5 is not. because,
A
nitrogen is less reactive than phosphorus.
B
nitrogen doesn't have d-orbitals in its valence shell.
C
catenation tendency is weaker in nitrogen than phosphorus.
D
size of phosphorus is larger than nitrogen.
3
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Change Language

Transition metal complex with highest value of crystal field splitting ($$\Delta$$0) will be :

A
[Cr(H2O)6]3+
B
[Mo(H2O)6]3+
C
[Fe(H2O)6]3+
D
[Os(H2O)6]3+
4
JEE Main 2022 (Online) 24th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Some gases are responsible for heating of atmosphere (green house effect). Identify from the following the gaseous species which does not cause it.

A
CH4
B
O3
C
H2O
D
N2
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