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General Chemistry MCQ Question with Answer

General Chemistry MCQ with detailed explanation for interview, entrance and competitive exams. Explanation are given for understanding.

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Question No : 29
The substance preserved under water is

potassium
sodium
red phosphorus
white phosphorus

Question No : 30
The metal which reacts most violently with cold water is

calcium
sodium
magnesium
potassium

Question No : 31
Clark's method for removal of temporary hardness in water uses

calcium hydroxide
washing soda
calcium chloride
zeolite

Question No : 32
Suspended impurities in water are effectively removed by

adding milk of lime
filtering through sand
adding filter alum
chlorination

Question No : 33
Heavy water was discovered by

TW Richards
FW Aston
Stas
Urey

Question No : 34
White vitriol is

ZnSO4 . 7H2O
FeSO4 . 7H2O
MgSO4 . 7H2O
CaSO4 . 2H2O

Question No : 35
The human body contains about

50% water
10% water
70% water
20% water

Wanna test your skill? Here are some exams we prepared for you. So if you need to test your skill just attempt any exam from bellow.

Exam Name No. Of Q Link
Chemistry set 1 30 Start
Chemistry set 2 30 Start
Chemistry set 3 30 Start
Chemistry set 4 30 Start
Chemistry set 5 30 Start
Chemistry set 6 30 Start
Chemistry set 7 30 Start
Chemistry set 8 30 Start
Chemistry set 9 30 Start
Chemistry set 10 30 Start
Chemistry set 11 30 Start
Chemistry set 12 30 Start