The Chemical formula of Ammonium dichromate is _____.
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Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?
Which metal is liquid at room temperature?
Mercury is the only metal that remains in liquid at room temperature.
....... is displaced when zinc is added to the solution of copper sulphate
There are ............ metalloids in the modern periodic table.
Which of the following can be beaten and converted into thin sheets?
The passage of an electric current through a conducting liquid causes ___________.
Sour taste of lemon is due to the presence of which of the following ?
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