(a) Neon
(b) Sulphur
(c) Hydrogen
(d) Helium
Answer:
In nuclear reactor, Chain reaction is controlled by introducing
(a) Platinum rod
(b) Graphite rod
(c) Cadmium rod
(d) Iron rod
Answer:
Which one of the following is not radioactive?
(a) Zirconium
(b) Tritium
(c) Astanine
(d) francium
Answer:
NaCl has
(a) Co-ordinate bond
(b) Covalant bond
(c) Ionic bond
(d) None of these
Answer:
A reducing agent is a substance which can
(a) Donate protons
(b) Accept protons
(c) Accept electrons
(d) Donate electrons
Answer:
Sulphuric acid is
(a) Tribasic
(b) Tetrabasic
(c) Monobasic
(d) Dibasic
Answer:
b>
(a) Neutral
(b) Buffer
(c) Acidic
(d) Basic
Answer:
Source of vitamin C is
(a) Maleic acid
(b) Oxalic acid
(c) Nitric acid
(d) Ascorbic acid
Answer:
Which of the following will replace hydrogen from acids to form salts?
(a) Na
(b) S
(c) P
(d) Ag
Answer:
The vertical lines in modern periodic table are called
(a) Metal
(b) Non-metal
(c) Period
(d) Group
Answer: