Why is sodium stored in kerosene?
(A) To maintain in its original form
(B) It gets oxidised in air
(C) evaporation starts in the air
(D) it starts burning in air
Which lobe of the human brain is related to hearing?
(A) frontal lobe
(B) wall lobe
(C) conch lobe
(D) sympathetic lobe
Which of the following is not soluble in water?
(A) Lead sulphate
(B) Zinc Sulphate
(C) Potassium sulphate
(D) Sodium sulphate
By which of the following is activated charcoal used to remove dyes from pure elements?
(A) Bleaching
(B) Oxidation
(C) Adsorption
(D) Reduction
Chornobyl disaster is the result of pollution of
(A) Oil spill
(B) Acid rain
(C) Carbon dioxide
(D) Radioactive waste
Which of the following caused radioactive pollution off the coast of Kerala?
(A) Plutonium
(B) Zinc
(C) Thorium
(D) Radium
From what does the root cover arise?
(A) Dermatogen
(B) Calyptrogen
(C) Protoderm
(D) Histogen
The morphology of chromosomes can be well studied by ______
(A) Interstate
(B) Past
(C) Middle stage
(D) Zygotene
What do we use for firefighting?
(A) Hydrogen
(B) Carbon-monooxide
(C) Carbon dioxide
(D) Marsh gas
Silver gets corrosive due to the presence of _______ in the air.
(A) Oxygen
(B) Hydrogen
(C) Carbon dioxide
(D) Nitrogen
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