EASY
Earn 100

Food cans are coated with tin but not with zinc because:

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Important Questions on Chemistry

EASY
General Science>General Science>Chemistry>Elements and Compounds
What is formed when helium atom loses one electron?
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds

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

MEDIUM
General Science>General Science>Chemistry>Elements and Compounds

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

MEDIUM
General Science>General Science>Chemistry>Elements and Compounds
The element with atomic number 57 belongs to _____:
 
EASY
General Science>General Science>Chemistry>Elements and Compounds
Which of these is an essential component of most acids?
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds
The suffix attached to a hydrocarbon chain ending with a ketone is _____:
EASY
General Science>General Science>Chemistry>Elements and Compounds
Sodium hydroxide reacts with _____ to form a solution of table salt:
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds
_____ element has the largest atom and _____ element has the smallest atom.
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General Science>General Science>Chemistry>Elements and Compounds

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

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General Science>General Science>Chemistry>Elements and Compounds

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

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General Science>General Science>Chemistry>Elements and Compounds

Catalyst is a substance that_____:

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General Science>General Science>Chemistry>Elements and Compounds
 Which of the following metal is used in storage battery?
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General Science>General Science>Chemistry>Elements and Compounds
Which one is not an allotropic form of carbon _____:
 
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds

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

MEDIUM
General Science>General Science>Chemistry>Elements and Compounds
A chemical _____ is present in the cork cells to make them impervious to gases and water:
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds
Which of the following is a major component of German Silver?
HARD
General Science>General Science>Chemistry>Elements and Compounds
Which of the following statement(s) is/are CORRECT?
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
General Science>General Science>Chemistry>Elements and Compounds
Group _____ contain non–reactive gases(Noble Gases):
EASY
General Science>General Science>Chemistry>Elements and Compounds
Dry ice is_____.
MEDIUM
General Science>General Science>Chemistry>Elements and Compounds

Which of the following is not a bleaching agent?

1. Sodium hypochlorite
2. Calcium hypochlorite
3. Hydrogen peroxide
4. Hydrogen sulphide