1
IIT-JEE 1996
MCQ (Single Correct Answer)
+1
-0.25
The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order
K2CO3 (A), MgCO3 (B), CaCO3 (C), BeCO3 (D)
A
A < B < C < D
B
D < B < C < A
C
D < B < A < C
D
B < D < C < A
2
IIT-JEE 1994
MCQ (Single Correct Answer)
+2
-0.5
Statement (S) The alkali metals can form ionic hydrides which contain the hydride ion H-.
Explanation (E) The alkali metals have low electronegativity; their hydrides conduct electricity when fused and liberate hydrogen at the anode.
A
Both S and E are true and E is the correct explanation of S
B
Both S and E are true but E is not the correct explanation of S
C
S is true but E is false
D
S is false but E is true
3
IIT-JEE 1991
MCQ (Single Correct Answer)
+1
-0.25
The volume strength of 1.5 N H2O2 solution is
A
4.8
B
8.4
C
3.0
D
8.0
4
IIT-JEE 1987
MCQ (Single Correct Answer)
+1
-0.25
The metallic lustre exhibited by sodium is explained by
A
diffusion of sodium ions
B
oscillation of loose electrons
C
excitation of free protons
D
existence of body centered cubic lattice
JEE Advanced Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
CBSE
Class 12