1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

In the chemical reaction,

N$$_2$$ + 3H$$_2$$ $$\rightleftharpoons$$ 2NH$$_3$$ at equilibrium point.

A
equal volumes of N$$_2$$ and H$$_2$$ are reacting.
B
equal means of N$$_2$$ and H$$_2$$ are reacting.
C
the reaction has stopped.
D
the same amount of ammonia is formed, as it is decomposed into N$$_2$$ and H$$_2$$.
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

The change in the energy of system if 500 cal of heat energy are added to a system and system does 350 cal of work on the surroundings will be

A
$$-$$150 cal
B
+150 cal
C
+850 cal
D
$$-$$850 cal
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following is most stable?

A
CH$$_2$$N$$_2^+$$X$$^-$$
B
C$$_6$$H$$_5$$N$$_2^+$$X$$^-$$
C
CH$$_3$$CH$$_2$$N$$_2^+$$X$$^-$$
D
C$$_6$$H$$_5$$CH$$_2$$N$$_2^+$$X$$^-$$
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which type of ligand is EDTA?

A
Monodentate
B
Hexadentate
C
Bidentate
D
Tridentate
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