General Science quiz part 2


1) Which one of the following is not an element of Noble gases?

    a) Helium

    b) Neon

    c) Xenon

    d) Hydrogen

Ans: d

2) Mole is defined as the number of atoms found in ___ of carbon-12?

    a) 11 grams

    b) 14 grams

    c) 10 grams

    d) 12 grams

Ans: d

3) Which one of the following is not a mixture?

    a) Steel

    b) Aluminum

    c) Graphite

    d) Glass

Ans: c

4) Alloys are ____.

    a) harder than the pure metal

    b) harder than the impure metal

    c) Softer than the pure metal

    d) Softer than the impure metal

Ans: c

5) What is the name of that process in which oxygen is removed?

    a) Oxidation

    b) Electrolysis

    c) Ionization

    d) Reduction

Ans: d

6) Rusting is an ___ reaction.

    a) Ionization

    b) Oxidation

    c) Reduction

\    d) None of the above

Ans: b

7) What is needed for rusting to occur?

    a) Water

    b) Oxygen

    c) Water & oxygen

    d) Carbon dioxide

Ans: c

8) All acids are____.

    a) Corrosive when they are strong

    b) Corrosive when they are weak

    c) Irritant when they are strong

    d) None of the above

Ans: a

9) When an acid reacts with a metal carbonate, the products formed are ___.

    a) Salt, Water, and carbon dioxide

    b) Salt & water

    c) Water & Carbon dioxide

    d) Salt & carbon dioxide

Ans: a

10) Which one is an alkaline among the following?

    a) Vinegar

    b) Saliva

    c) Ammonia

    d) Acid rain

Ans: c

11) In the periodic table, elements are arranged according to their____.

    a) Mass number

    b) Atomic and mass number

    c) Atomic number

    d) None of the above

Ans: c

12) What is an isotope?

    a) Atoms of an element having a different mass number

    b) Atoms of an element having the same mass number

    c) Atoms of an element having a different atomic number

    d) Atoms of an element having the same atomic number

Ans: a

13) The atomic number is represented by which letter?

    a) A

    b) M

    c) X

    d) Z

Ans: d

14) Which science is sometimes called central science?

    a) Physics

    b) Chemistry

    c) Biology

    d) Geology

Ans: b

15) Which acid is used in the body to help digestion?

    a) Hydrochloric acid

    b) Sulphuric acid

    c) Acetic acid

    d) Boric Acid

Ans: a

16) Which of the following was to be discovered first in the chromospheres of the sun?

    a) Krypton

    b) Xenon

    c) Neon

    d) Helium

Ans: d

17) From which mineral is radium obtained?

    a) Rutile

    b) Haematite

    c) Limestone

    d) Pitchblende

Ans: d

18) Which of the following are the ingredients of gunmetall?

    a) iron, zinc, Titanium

    b) Iron, tin

    c) iron, Brass, Tin

    d) Copper, Tin

Ans: d

19) Sodium metal is kept under___.

    a) Petrol

    b) alcohol

    c) Water

    d) Kerosene

Ans: d

20) Which of the following is in liquid form at room temperature?

    a) Lithium

    b) Sodium

    c) Francium

    d) Cerium

Ans: c

21) Potasium nitrate is used in___.

    a) medicine

    b) fertilizer

    c) salt

    d) glass

Ans: b

22) Permanent hardness of water may be removed by the addition of

    a) sodium carbonate

    b) alum

    c) potasium permanganate

    d) lime

Ans: a

23) Sodium water contains

    a) carbonic acid

    b) sulphuric acid

    c) carbonic dioxide

    d) nitrous acid

Ans: c

24) The most important ore of aluminium is

    a) galena

    b) calamine

    c) calcite

    d) bauxite

Ans: d

25) Most soluble in water is

    a) camphor

    b) sulfur

    c) common salt

    d) sugar

Ans: d

26) Most soluble in water is 

    a) camphor

    b) sulphur

    c) common salt

    d) sugar

Ans: d

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