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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
- Why are the elements of Group 18 known as noble gases ?
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- Which of the two NH3 and PH3 is more basic and why ?
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- How many significant figures are present in 4.01 × 10*2
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- Which of these is not a tree?
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- Which of the two NH3 and PH3 is soluble in water and why?
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- Arrange H(2)O, NH(3) " and "CH4 in the decreasing order of bond angle.
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- The cost of table salt (NaCl) is Rs 2 per Kg. Calculate the cost per m...
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- Give an example of compounds in which the oxidation state of nitrogen ...
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- Give an example of compounds in which the oxidation state of nitrogen ...
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- Give an example of compounds in which the oxidation state of nitrogen ...
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- What does the abbreviation T.N .T. stand for ?
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- What is laughing gas ? How is it prepared ?
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- Which plants mostly help in nitrogen fixing ?
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- Write the formula of the compound formed during ring test of nitrate ....
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- Name the oxide of nitrogen Which is blue solid ?
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- Name three oxoacids of nitrogen.
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- Which oxide of nitrogen is produced by heating lead nitrate ?
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- Give one example each of oxyacid of P having the oxidation state +4 .
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- What is the chemical formula of laughing gas ? How is it prepared ?
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- Among the hydrides of group 15, predict the hydride having most basic ...
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- Among the hydrides of group 15, predict the hydride having highest the...
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