(A) Baking Soda
(B) Caustic soda
(C) Ammonia
(D) Washing soda
Author:
The development of the ultra microscope makes use of the?
(A) Edison effect
(B) Tyndall effect
(C) Brownian motion
(D) Zeeman effect
The first metal to be used by man was?
(A) Aluminium
(B) Copper
(C) Silver
(D) Iron
The hardest form of carbon is?
(A) Coke
(B) Graphite
(C) Diamond
(D) Charcol
The most commonly used bleaching agent is?
(A) Sodium chloride
(B) Carbon dioxide
(C) Chlorine
(D) Alcohol
The purest form of iron is?
(A) Pig iron
(B) Cast iron
(C) Wrought iron
(D) Stainless steel
Which of the following gases is used in the cigarette lighters?
(A) Butane
(B) Methane
(C) Propane
(D) Radon
Which of the following is the Chemical name of the salt we use in kitchen?
(A) Sodium Chloride
(B) Ammonium Sulphate
(C) Sodium Carbonate
(D) Calcium Carbonate