EASY
Earn 100

Food cans are coated with tin but not with zinc because:
(a)Zinc is costlier than tin
(b)Zinc has a higher melting point than tin
(c)Zinc is more reactive than tin
(d)Tin is more reactive than zinc

50% studentsanswered this correctly
Important Questions on Chemistry
EASY

MEDIUM
Which of the following non-metal conducts electricity?
(A) Lead
(B) Wood charcoal
(C) Coal
(D) Diamond

MEDIUM
Which of the given below atomic numbers of elements resembles the chemical properties of Magnesium?

MEDIUM

EASY

MEDIUM

EASY

MEDIUM

EASY
How many moles of sulphuric acid are present in 25 gm?

EASY
Which of the following is known as the 'King of Chemicals'?

EASY
Catalyst is a substance that_____:

EASY

EASY

MEDIUM
The hormone produced in plants due to which the stem bends towards sunlight is _____:

MEDIUM

MEDIUM

HARD
I. Carbon compounds linked by the only single bond are called saturated compounds.
II. Carbon Compounds having double or triple bonds are called unsaturated compounds.
III. Saturated carbon compounds are more reactive than unsaturated carbon compounds.

MEDIUM


MEDIUM
Which of the following is not a bleaching agent?
1. Sodium hypochlorite
2. Calcium hypochlorite
3. Hydrogen peroxide
4. Hydrogen sulphide

