1
WB JEE 2022
MCQ (Single Correct Answer)
+1
-0.25

The correct order of acidity of the following hydra acids is

A
HF > HCl > HBr > HI
B
HF < HCl < HBr < HI
C
HF < HCl > HBr > HI
D
HF > HCl < HBr > HI
2
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Cyclo [18] carbon is an allotrope of carbon with molecular formula C18. It is a ring of 18 carbon atoms, connected by single and triple bonds. The total number of triple bonds present in this cyclocarbon are
A
9
B
10
C
12
D
6
3
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
Cl2O7 is the anhydride of
A
HOCl
B
HClO2
C
HClO3
D
HClO4
4
WB JEE 2018
MCQ (Single Correct Answer)
+1
-0.33
Which of the following is present in maximum amount in 'acid rain'?
A
HNO3
B
H2SO4
C
HCl
D
H2CO3
WB JEE Subjects