is silica?
(A) metalloids
(B) metal
(C) non-metals
(D) none of these
If an alloy contains a metal mercury, what is it called?
(A) mercury alloy
(B) Iron Alloy
(C) Amalgam
(D) Zinc Alloy
Gas is produced by the reaction of steam on iron?
(A) Hydrogen gas
(B) Oxygen gas
(C) ammonia gas
(D) Nitrogen gas
Which of the following compound contains only Carbon and Hydrogen atoms in their formation?
(A) Chloroform
(B) Teflon
(C) Ethanol
(D) Benzene
Who was the inventor of positron?
(A) Chadwick
(B) Anderson
(C) Rutherford
(D) J.J. Thomson
Neutron was discovered -
(A) Chadwick
(B) Newton
(C) Rutherford
(D) Thomson
Curie is the unit of:
(A) Heat
(B) Energy
(C) Radioactivity
(D) Temperature
Which of the following is not a Green House gas?
(A) Nitrous oxide
(B) Nitrogen
(C) Methane
(D) Carbon dioxide
Which of the following properties is not often present in organic compounds?
(A) soluble in water
(B) low melting point
(C) flammability
(D) all
It is easy to make stone by beating metals. Which property of the metal does it indicate?
(A) hardness
(B) malleability
(C) conductivity
(D) Activity
Get the Examsbook Prep App Today