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11th Standard English Medium Chemistry Subject Hydrogen Book Back 2 Mark Questions with Solution Part - I Question Bank Software Jun-07 , 2021

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11th Standard English Medium Chemistry Subject Hydrogen Book Back 2 Mark Questions with Solution Part - I

11th Standard English Medium Chemistry Subject Hydrogen Book Back 2 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
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Chemistry

Time : 00:30:00 Hrs
Total Marks : 10

    Part I

    5 x 2 = 10

  1. Explain why hydrogen is not placed with the halogen in the periodic table.

  2. An the cube at 0° C is placed in some liquid water at 00C, the ice cube sinks - Why? What will happen to ice at 00C placed in liquid water at 00C? 

  3. Predict which of the following hydrides is a gas on a solid
    (a) BCI
    (b) NaH 
    Give your reason.

  4. NH3 has exceptionally high melting point and boiling point as compared to those of the hydrides of the remaining element of group 15. Explain.

  5. Why interstitial hydrides have a lower density than the parent metal.

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