Chemistry Quiz Questions and Answers - Set 09 - ObjectiveBooks

Chemistry Quiz Questions and Answers - Set 09

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

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