Objective General Knowledge

Q. The term 'Carat' is used to express the purity of gold. The purest form of gold is
1 18 carats
2 20 carats
3 22 carats
4 24 carats
Ans: 4

Q. The sulphide ores of metals are concentrated by
1 cupellation
2 electrolysis
3 froth floatation
4 calcinations
Ans: 3

Q. The substance that is least prone to catch and spread fire is
1 Nylon
2 Terycot
3 Cotton
4 Polyester
Ans: 3

Q. The substance that contains the maximum amount of nitrogen is
1 Urea
2 Ammonium Sulphate
3 Ammonium Nitrate
4 Ammonium Chloride
Ans: 1

Q. The purest form of iron is
1 pig iron
2 cast iron
3 wrought iron
4 stainless steel
Ans: 3

Q. The nucleus of a hydrogen atom consists of
1 One Proton + One Neutron
2 One Protons + Two Neurons
3 One Neutron Only
4 One Electron Only
Ans: 2

Q. The nuclear particles that are assumed to hold nucleons together are
1 Electrons
2 Positrons
3 Neutrons
4 Mesons
Ans: 4

Q. The National Chemical Laboratory is situated in
1 New Delhi
2 Bangalore
3 Pune
4 Patna
Ans: 3

Q. The names of the scientists, Newlands, Mandeleev and Meyer are associated with the development of
1 atomic structure
2 metallurgy
3 periodic table of elements
4 discovery of elements
Ans: 3

Q. The most malleable metal is
1 platinum
2 silver
3 iron
4 gold
Ans: 4