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Chemistry

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Chemistry
Q1. The structure of NaCl crystal is
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    Q2. “Paramagnetism” is the property of
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      Q3. Which of the following phenomenon is considered responsible for Global Warming?
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        Q4. The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of
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          Q5. The mass number of an atom is equal to
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            Q6. Equal masses of oxygen, hydrogen and methane are kept under identical conditions. The ratio of the volumes of gases will be
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              Q7. The National Chemical Laboratory is situated in
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                Q8. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in
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                  Q9. The number of waves made by an electron moving in an orbit having maximum magnetic quantum number is +3
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                    Q10. The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind?
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