Which among the following is not an example of emulsion?
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Which of the following gas leaked in the Bhopal Gas tragedy in December 1984?
Metals reacts with acids to give:
........... is not a sub atomic particle of an atom.
Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
A radio-active substance has a half life of six months. Three-fourth of the substance will decay in ______.
The modern periodic table consists of 18 groups and 7 periods. What is the atomic number of the element placed in the 2nd group and the 4th period?
The property of metals by which they can be beaten into thin sheets is called _______________.