1
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Entropy of the universe is

A
continuously increasing
B
continuously decreasing
C
zero
D
constant
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Which of the following salts on being dissolved in water gives pH > 7 at 25$$^\circ$$C ?

A
NH$$_4$$CN
B
NH$$_4$$Cl
C
KNO$$_3$$
D
KCN
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

The reagent used in Clemmenson's reduction is

A
alc. KOH
B
aq. KOH
C
Zn-Hg/conc. HCl
D
conc. H$$_2$$SO$$_4$$
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

When KBr is dissolved in water, K$$^+$$ ions are

A
oxidised
B
reduced
C
hydrolysed
D
hydrated
EXAM MAP