Which of the following is an element?
Answer: A (Graphite and Diamond are allotropes of Carbon)
The catalyst used in the production of ammonia by the Haber’s process is
Which of the following is to be found in the tomato sauce?
(A) Acetic acid
(B) Oxalic acid
(C) Lactic acid
(D) Citric acid
The element found in the surface of the moon is
Which of the following noble gas doesn’t exist in air?
The element present in the largest amount in rocks and minerals is
‘IC chips’ for computers are usually made of
The substance which is frequently used in the photography is
(A) Citric acid
(B) Sulphuric acid
(C) Silver nitrate
(D) Silver bromide
Which of the following is halogen?
(A) gain of hydrogen
(B) gain in electrons
(D) loss of electrons
The gases used in the respiratory activities of sailors (divers) are
(A) Oxygen and neon
(B) Oxygen and argon
(C) Oxygen and helium
(D) Oxygen and nitrogen
Which one of the following fertilizers has more nitrogen content?
(A) Ammonium Phosphate
(B) Potassium Nitrate
(C) Ammonium Nitrate
The most important ore of aluminum is
Which of the following is not known as green house gas?
(B) Carbon dioxide
(C) Nitrous oxide
Which synthetic fibre is known as artificial silk?
Which among the following is a metalloid?
Which among the following acid is used to remove ink-spots?
(A) Tartaric acid
(B) Oxalic acid
(C) Hydrochloric acid
(D) Butyric acid
Bleaching powder is obtained by the action of chlorine gas and
(A) Dry CO
(B) Solution of Ca(OH)2
(C) Dry slaked lime
(D) Conc. Solution Ca(OH)2
Which of the following metals remains in liquid form under normal conditions?
Which one of the following non-metals is not a poor conductor of electricity?
Which one of following sets of elements was primarily responsible for the origin of life on the Earth?
(A) Carbon, hydrogen, potassium
(B) Oxygen, calcium, phosphorus
(C) Carbon, hydrogen, nitrogen
(D) Hydrogen, oxygen, sodium
Which of the following contains high content of lead?
(A) Low octane fuel
(B) High octane fuel
(C) Cooking gas
Which of the following is the lightest gas?
(A) Carbon dioxide
Sodium metal is kept under
Which among the following is a solid non-metal?
Which one of the following is not radioactive?
Which of the following is a non-metal that remains liquid at room-temperature?