Chemistry General knowledge questions and answers - Set 07 - ObjectiveBooks

Chemistry General knowledge questions and answers - Set 07

G.K. Practice Test: Question Set - 07

1. The metallurgical process in which a metal is obtained in a fused state is called
    (A) Smelting
    (B) Roasting
    (C) Calcinations
    (D) Froth floatation

2. The most commonly used bleaching agent is
    (A) Alcohol
    (B) Carbon dioxide
    (C) Chlorine
    (D) Sodium chlorine

3. The ore which is found in abundance in India is
    (A) Monazite
    (B) Fluorspar
    (C) Bauxite
    (D) Magnetite

4. The mass of one Avogadro number of helium atom is
    (A) 1.00 gram
    (B) 4.00 gram
    (C) 8.00 gram
    (D) 4 × 6.02 × 1023 gram

5. The hydronium ion is
    (A) H+
    (B) HO-
    (C) H₂+
    (D) H3O+

6. The most extensive, commercially useful source of thorium as monazite sand occurs in India at
    (A) Orissa coast
    (B) Travancore coast
    (C) West Bengal coast
    (D) Gujarat coast

7. The isomerism which exists between CH3CHCI2 and CH2CI. CH2CI is
    (A) Chain isomerism
    (B) Functional group isomerism
    (C) Positional isomerism
    (D) Metamerism

8. The mass number of an atom is equal to
    (A) The number of protons
    (B) The number of protons and electrons
    (C) The number of nucleons
    (D) The number of neutrons

9. The molecular formula of phosphorous is
    (A) P1
    (B) P2
    (C) P3
    (D) P4

10. The law which states that the amount of gas dissolved in a liquid is proportional to its partial pressure is
    (A) Dalton's law
    (B) Gay Lussac's law
    (C) Henry's law
    (D) Raoult's law

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