True or false statements about dihydrogen

1. A.
   It is colorless and tasteless gas.
2. B.
   It burns with a pale blue flame.
3. C.
   It is a polar water-soluble gas.
4. D.
   It is lighter than air.

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1. A.
   It has two isotopes.
2. B.
   In periodic table hydrogen is placed separately above group 1.
3. C.
   When one electron is lost it forms proton.
4. D.
   It does not exist freely.

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