🧪Chemistry MCQs
Chemistry MCQs
10 MCQs1
2-Butyne contains:______________?
ChemistryBy: Aamir khan Hullio
Asp hybridised carbon atoms only
Bsp3 hybridised carbon atoms only
Cboth sp and sp2 hybridised carbon atoms
DN/A
2
Evaporation is_____________?
ChemistryBy: Aamir khan Hullio
AEndothermic Reaction
BSurface Process
CContinuous Process
DAll of these.
3
Ionic solids do not conduct the electrical current because:
ChemistryBy: mdcatguru
AIons don’t have translatory motion
BThe coordination number of ion is very high
CFree electrons are less
DStrong covalent bonds are present in their structure
4
The strongest hydrogen bonding is present in: _____________?
ChemistryBy: mdcatguru
AAmmonia gas
BIce
CEthanol
DAcetone and chloroform
5
If heat is to be supplied continuously to a liquid at its boiling point, the temperature remains constant because:
ChemistryBy: mdcatguru
AExtra heat is spread in the air
BHigh energy molecules continuously leaving the surface of liquid
CThe forces of attractions become stronger
DThe vapour pressure of the boiling liquid becomes greater than the external pressure
6
What is the chemical symbol of “Potassium”?
ChemistryBy: Nida Usman
AP
BK
CPo
DPt
7
In acidic medium, ____ is used to balance oxygen atoms in an ionic equation.
ChemistryBy: Aamir khan Hullio
AH+
BOH-
CH2O
DO
8
4moles of Carbon dioxide(CO2) have _____molecules.
ChemistryBy: Aamir khan HullioUniversity Admission Guides
A6.02 x 1023
B12.04 x 1025
C18.06 x 1023
D24.08 x 1023
9
Identify among the following which has Lowest energy of electron in 1st shell.
ChemistryBy: Aamir khan Hullio
AH
BHe+¹
CLi+²
DBe+³
10
Identify among the following elements that does NOT belong to VIIA group
ChemistryBy: Aamir khan Hullio
ACl
BF
CN
DBr