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Chemistry

Chemistry
Hard water and soft water can be distinguished by using

Liquid soap
Dilute acid
Detergent
Ordinary soap

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Chemistry
Copper substances when exposed to air gains a green coating due to the formation of:

CuSO4
CuO
CuCO3 Cu(OH)2
Cu(NO3)2

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Paint
Glass
Gun powder
Cement

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Chemistry
Among the following iron ores, the highest percentage of iron content is found in–

Limnonite
Magnetite
None of these
Haemetite

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Chemistry
The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of

metallurgy
discovery of elements
atomic structure
periodic table of contents

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Chemistry
Which of the following is used to denature ethanol ?

Propyl alcohol
Methyl alcohol
Methane
Phenol

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MORE MCQ ON Chemistry

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