Methane contributes towards global warming so it is called a _________________ gas.
What is the number of groups and periods in the modern periodic table?
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Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
What is dry ice?
Which among the following metal is used for galvanization?
Which element is generally No Radioactive?
Hydrogenation process is associated with which of the following?
........... compound is used as a drying agent.
....... is displaced when zinc is added to the solution of copper sulphate
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