1000 Best General Science MCQ-Questions
Q33). Soda water contains
a).carbonic acid
b).sulphuric acid
c).carbon dioxide
d).nitrous acid
Correct Answer:
carbon dioxide
Explanation:
Q34). The most important ore of aluminium is
a).galena
b).calamine
c).calcite
d).bauxite
Correct Answer:
bauxite
Explanation:
Q35). Most soluble in water is
a).camphor
b).sulphur
c).common salt
d).sugar
Correct Answer:
sugar
Explanation:
Q36). Which of the following was to be discovered first in the chromospheres of the sun?
a).Krypton
b).Xenon
c).Neon
d).Helium
Correct Answer:
Helium
Explanation:
Q37). Which of the following is in liquid form at room temperature?
a).Lithium
b).Sodium
c).Francium
d).Cerium
Correct Answer:
Francium
Explanation:
Q38). Sodium metal is kept under
a).petrol
b).alcohol
c).water
d).kerosene
Correct Answer:
kerosene
Explanation:
Q39). Which of the following are the ingredients of gun metal?
a).Iron, Zinc, Titanium
b).Iron, tin
c).Iron, Brass, Tin
d).Copper, Tin
Correct Answer:
Copper, Tin
Explanation:
Q40). From which mineral is radium obtained?
a).Rutile
b).Haematite
c).Limestone
d).Pitchblende
Correct Answer:
Pitchblende
Explanation: