On burning hydrogen in air, the colour of flame is____.

green

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light bluish

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yellow

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None of these

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Solution

The correct option is A light bluish
Oxygen (or air) and an ignition source are required for combustion to occur. Hydrogen burns with a pale blue flame that is nearly invisible in daylight.

$H e n c e t h e c o r r e c t a n s w e r i s o p t i o n (A)$

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