The quality of petrol is improved by ____________?
A. Cracking
B. Reforming (to increase Quality)
C. Refining (to remove impurities)
D. Hydration
Submitted by :- Jamil Ahmed
Aldehydes and ketones both, show the type of Isomerism is __________?
A. chain Isomerism
B. Functional Group Isomerism
C. Metamerism
D. Position Isomerism
Submitted by :- Jamil Ahmed
Z number for chlorine is __________?
A. 35.5
B. 17
B. 15
D. 21
Submitted by :- Jamil Ahmed
The only non-metal exists in liquid state is ___________?
The chemical symbol for silver is __________?
In water molecule, Hydrogen & Oxygen atoms are held together by ______ bond.
A. Ionic
B. Covalent
C. Hydrogen
D. Dating
Submitted by :- Jamil Ahmed
One Water molecule can form maximum ______hydrogen bonds.
Cations possess __________ charge?
A. +ve
B. -ve
C. Neutral
D. None
Submitted by :- Jamil Ahmed
Atomic mass of an atom is present in the __________?
A. Shell
B. Orbit
C. Nucleus
D. Orbital
Submitted by :- Jamil Ahmed
Positron has __________charge.
A. +ve
B. -ve
C. Neutral
D. None of them
Submitted by :- Jamil Ahmed