1
WB JEE 2021
MCQ (More than One Correct Answer)
+2
-0
Change Language
Aqueous solution of HNO3, KOH, CH3COOH and CH3COONa of identical concentration are provided. The pair(s) of solutions which form a buffer upon mixing is (are)
A
HNO3 and CH3COOH
B
KOH and CH3COONa
C
HNO3 and CH3COONa
D
CH3COOH and CH3COONa
2
WB JEE 2021
MCQ (More than One Correct Answer)
+2
-0
Change Language
Reaction of silver nitrate solution with phosphorus acid produces
A
silver phosphite
B
phosphoric acid
C
metallic silver
D
silver phosphate
3
WB JEE 2021
MCQ (More than One Correct Answer)
+2
-0
Change Language
N2H4 and H2O2 show similarity in
A
density
B
reducing nature
C
oxidising nature
D
hybridisation of central atoms
4
WB JEE 2021
MCQ (Single Correct Answer)
+1
-0.25
Change Language
If $$I = \mathop {\lim }\limits_{x \to 0} sin\left( {{{{e^x} - x - 1 - {{{x^2}} \over 2}} \over {{x^2}}}} \right)$$, then limit
A
does not exist
B
exists and equals 1
C
exists and equals 0
D
exists and equals $${1 \over 2}$$
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12