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

During the formation of a chemical bond

A
energy decreases
B
energy increases
C
energy of the system does not change
D
electron-electron repulsion becomes more than the nucleus-electron attraction
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

+I-effect is shown by

A
$$-$$NO$$_2$$
B
$$-$$Cl
C
$$-$$Br
D
$$-$$CH$$_3$$
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Formation of coloured solution is possible, when metal ion in the compound contains

A
paired electrons
B
unpaired electrons
C
lone pair of electrons
D
None of the above
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Which of the following is an intensive property?

A
Temperature
B
Surface tension
C
Viscosity
D
All of the above
EXAM MAP