Which of the following is riot a greenhouse gas ?
1). Hydrogen
2). Carbon dioxide
3). Nitric oxide
4). Chlorofluorocarbon
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1. Detergents used for cleaning clothes and utensils contain
2. Ruby and sapphire are oxides of
3. Galvanised iron is made by coating iron with
4. Molasses a byproduct in the manufacture of sugar is converted into
5. Select the one which is not a mixture:
6. An emulsifier is an agent which
7. Which among the following elements is found in maximum percentage in the human body ?
8. Magnesium (Mg) + Oxygen $(O_{2})$ = ?
9. Question 4.16:Write the significance/applications of dipole moment.