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A N EXCEL PUBLICATION-HYDROGEN-QUESTION BANK
- Justify the position of hydrogen in the periodic table
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- Hydrogen peroxide is an important chemical used in pollution control t...
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- Draw the structure of hydrogen peroxide
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- Explain with suitable chemical equation, why hydrogen peroxide is stor...
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- Permanent hardness of water can be removed only by chemical methods. W...
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- Permanent hardness of water can be removed only by chemical methods. S...
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- How is sodium hexametaphosphate useful in removing the permanent hardn...
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- Suggest a disadvantage of hard water.
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- Hard water contains calcium and magnesium salts. Therefore it does not...
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- How will you remove the hardness from the water by using washing soda?
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- WhIch method is more suitable to get pure demineralised water?
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- Hydrogen peroxide is stored in plastic vessels in dark why?
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- What is coal gasification?
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- About 18% of the total production of dihydrogen is from coal. How is d...
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- Write any two uses of dihydrogen.
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- Water is an amphoteric substance. Justify
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- Hydrides are binary compounds of hydrogen with other elements. Give on...
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- H2O2 is a bleaching agtent. Why?
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- Complete the following reaction. (Zn(s) + NaOH(aq) rarr^(heat) ………………....
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- In a seminar, if you are asked to present a paper on hydrogen economy,...
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