G.K. Practice Test: Question Set - 09
1. The items amenable to detection by soft x-rays are
- (A) Contrabands
- (B) Lead in
bullets
- (C) Narcotics
- (D) Genuine
coins from counterfeit coins
2. Zone refining is used for the purification of
- (A) Au
- (B) Ge
- (C) Ag
- (D) Cu
3. The hardest form of carbon is
- (A) Coke
- (B) Graphite
- (C) Diamond
- (D) Charcoal
4. The inert gases are _________ in water
- (A) Sparingly
soluble
- (B) Insoluble
- (C) Soluble
- (D) None of
these
5. The most electronegative element among the following is
- (A) Sodium
- (B) Bromine
- (C) Fluorine
- (D) Oxygen
6. The luster of a metal is due to
- (A) Its high
density
- (B) Its high
polishing
- (C) Its chemical
inertness
- (D) Presence of
free electrons
7. The organic reaction represented by equation CH3 - CH = O + H2NOH gives CH3 - CH - NH + H2O is an example of
- (A) An addition
reaction
- (B) A
condensation reaction
- (C) An oxidation
reaction
- (D) An
elimination reaction
8. The nucleus of an atom consists of
- (A) Electrons
and neutrons
- (B) Electrons
and protons
- (C) Protons
and neutrons
- (D) All of the
above
9. The most abundant rare gas in the atmosphere is
- (A) He
- (B) Ne
- (C) Ar
- (D) Xe
10. The first metal used by man was
- (A) Iron
- (B) Copper
- (C) Gold
- (D) Bronze
Next Tests: