Chemistry General Knowledge Quiz - Set 04 - ObjectiveBooks

Chemistry General Knowledge Quiz - Set 04

G.K. Practice Test: Question Set - 04

1. The following are the half lives of four active isotopes. Which one of the following is the most dangerous to handle?
    (A) 3 billion years
    (B) 100 years
    (C) 0.01 minute
    (D) 13 days

2. The high reactivity of fluorine is due to
    (A) Its high electro negativity
    (B) Small size of fluorine atom
    (C) Availability of d-orbitals
    (D) Strong F - F bond

3. The metal does not give H2 on treatment with dilute HCL is
    (A) Zn
    (B) Fe
    (C) Ag
    (D) Ca

4. The maximum number of isomers for an alkene with molecular formula C4H8 is
    (A) 5
    (B) 4
    (C) 2
    (D) 3

5. The human body is made up of several chemical elements; the element present in the highest proportion (65%) in the body is
    (A) Carbon
    (B) Hydrogen
    (C) Oxygen
    (D) Nitrogen

6. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in
    (A) 1.8 gram of H2O
    (B) 12 moles of KMnO4
    (C) 0.6 N H2SO4
    (D) 4.6 gram of C2H5OH

7. The formula C6H5-CO-CH3 represents
    (A) Acetone
    (B) Acetic acid
    (C) Acetophenone
    (D) Phenyl acetate

8. The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
    (A) Atomic structure
    (B) Metallurgy
    (C) Periodic table of contents
    (D) Discovery of elements

9. The metal that is used as a catalyst in the hydrogenation of oils is
    (A) Ni
    (B) Pb
    (C) Cu
    (D) Pt

10. The number of moles of solute present in 1 kg of a solvent is called its
    (A) Molality
    (B) Molarity
    (C) Normality
    (D) Formality

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