EASY
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Which of the following represents the allotropic forms of iron?

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Important Questions on Chemistry

MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following is NOT an ore of iron?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following acids is NOT present in grapes?
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
What is the colour of the light emitted by the Sun?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
______ are homogeneous mixtures of two or more components.
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
What is the more common name for solid carbon dioxide?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following has the lowest melting point?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following is used as a substitute of mercury in thermometers?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Which among the following is a cation?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Methane is a colourless, odourless, non-toxic but flammable gas. What is its common name?
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following is the major component of vinegar?
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
Which of the following can be used as a catalyst in Hydrogenation reaction?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
On heating, gypsum loses a certain percentage of its water content and becomes _____.
HARD
General Awareness>General Science>Chemistry>Elements and Compounds
Which among the following has its refractive index closest to that of crown glass?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
What is the atomic mass of Zirconium?
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
Which among the following is NOT an insulator?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
Name the only metal that is antibacterial.
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
Protium, deuterium and tritium are the naturally occurring isotopes of:
MEDIUM
General Awareness>General Science>Chemistry>Elements and Compounds
When we cut an onion, the synthase enzyme converts the amino acid sulfoxides of the onion into which acid?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
As which one of the following, does carbon occur in its purest form in nature?
EASY
General Awareness>General Science>Chemistry>Elements and Compounds
On heating, Gypsum loses a certain percentage of its water content and becomes_____.