(A) Phosphorous
(B) Chlorine
(C) Helium
(D) Bromine
Tag: Inorganic Chemistry
Which of the following is chiefly present in LPG?
(A) Propane
(B) Ethane
(C) Butane
(D) Methane
Which of the following is used to remove rust stains on cloth?
(A) Oxalic acid solution
(B) Lime
(C) Petrol
(D) Kerosene
First metal used by a man was?
(A) Brass
(B) Bronze
(C) Silver
(D) Copper
Metals are good conductors because?
(A) They contain reflecting surface
(B) They contain free electrons
(C) The molecules in them collide very freely
(D) None of the above
Which of the following is a super cooled liquid?
(A) Mercury
(B) Glass
(C) Teflon
(D) Ice Cream
Which of the following pairs of materials serves as electrodes in rechargeable batteries commonly used in devices such as torch lights, electric shavers etc?
(A) Nickel and Cadmium
(B) Iron and Cadmium
(C) Zinc and Carbon
(D) Lead peroxide and Lead
A metal is exposed to the atmosphere for some time. Its becomes coated with green carbonate. The metal must be?
(A) Aluminium
(B) Zinc
(C) Copper
(D) Silver