Nitrate (NO3) ions are obtained by the process of __________?
A. Nitrification
B. Fermentation
C. Denitrification
D. None of these
Chemistry Mcqs
Which one of the following results in the discovery of proton.
Which one of the following results in the discovery of proton.
A. Cathode rays
B. Canal rays
C. X-rays
D. Alpha rays
The radiations with negative charge are________.
The radiations with negative charge are________.
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. positron
The radiations with highest speed are _______.
The radiations with highest speed are _______.
A. Alpha radiations
B. Gamma radiations
C. Beta radiations
D. AOT
Petra means ______ ?
Petra means ______ ?
A. Petrol
B. Sediment
C. Rock
D. Fuel
When the radiation of light is passed through a prism, it undergoes __________?
When the radiation of light is passed through a prism, it undergoes __________?
A. reflection
B. interference
C. diffraction
D. refraction
__________ is one of the allotropic modifications of carbon.
__________ is one of the allotropic modifications of carbon.
A. Silicon
B. Diamond
C. Iodine
D. Graphite
Atom is the smallest particall which is_________?
Atom is the smallest particall which is_________?
A. Indivisible
B. Divisible
C. Both
D. Non of these
An acid-Base Reaction is always a/an __________?
An acid-Base Reaction is always a/an __________?
A. Endothermic
B. Exothermic
C. Fission
D. Fusion
A metallic atom loses its valence electron to form a/an _________?
A metallic atom loses its valence electron to form a/an _________?
A. an anion
B. a cation
C. an anion – cation
D. none of these