Which of the following rays has the highest penetrating power?
(A) alpha ray
(B) gamma ray
(C) beta ray
(D) none of these
Who invented the atomic bomb?
(A) Rutherford
(B) Auto Han
(C) Madame Curie
(D) Rutherford and Madame Curie
Energy is emitted from the Sun?
(A) by chemical reaction
(B) burning of coal
(C) nuclear fission
(D) nuclear fusion
How many isotopes of hydrogen are there?
(A) 5
(B) 3
(C) 2
(D) 4
Isobars are produced by the emission of which of the following?
(A) alpha ray
(B) beta ray
(C) gamma ray
(D) X-ray
Which of the following compounds does not have ionic bond?
(A) calcium chloride
(B) Methane
(C) sodium chloride
(D) none of these
What is the tendency to accept electrons called?
(A) Oxidation
(B) Reduction
(C) Motivation
(D) inducement
Which is the radioisotope used to control blood cancer?
(A) Cobalt-60
(B) Sodium-24
(C) Iodine-131
(D) none of these
Rusting of iron is an example of
(A) Galvanization
(B) polymerization
(C) Oxidation
(D) Motivation
What are the substances which give heat by burning called?
(A) Coal
(B) fuel
(C) warm
(D) igniter
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