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Explain why HCl is a gas and HF is a l...

Explain why HCl is a gas and HF is a liquid ?

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Due to greater electronegativity of F over Cl, F forms stronger H-bonds as compared to Cl. As a result , more energy is needed to break the H-bonds in HF than in HCl and hence the b.p. of HF is higher than that of HCl. Consequently, H-F is liquid while HCl is a gas at room temperature .
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PRADEEP-HYDROGEN -NCERT EXEMPLAR PROBLEMS WITH ANSWER, HINTS AND SOLUTIONS (SHORT ANSWER QUESTIONS)
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  2. Dihydrogen reacts with dioxygen (O(2)) to from water .Write the na...

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  3. Explain why HCl is a gas and HF is a liquid ?

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  4. When the first element of the periodic table is treated with diox...

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  5. Rohan heard that instructions were given to the laboratory attend...

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  6. Given reason why hydrogen resembles alkali metals ?

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  7. Hydrogen generally form covalent compounds. Give reason

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  8. Why is the ionisation enthalpy of hydrogen higher than that of sod...

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  9. Basic pricinple of hyrogen economy is transpotation and storage of ...

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  11. Write the Lewis structure of hydrogen peroxide .

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  12. An acidic solution of hydrogen peroxide behaves as an oxidising ...

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  13. With the help of suitable examples, explain the property of H(2)O(2...

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  14. Why is water molecule polar ?

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  15. Why does water show high boiling points as compared to hydrogen su...

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  16. Why can dilute solutions of hydrogen peroxide not be concentrated b...

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  17. Why is hydrogen peroxide stored in wax lined bottles?

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