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प्रश्न
What do the following symbols [or formula] denote : 2H ; H2 ; H+. [two atoms, molecule, ion]
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उत्तर
2H denotes — 2 atoms of hydrogen
H2 — a molecule of hydrogen
H+ — an ion
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संबंधित प्रश्न
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Give reason for the following:
A pop sound produced when hydrogen is burnt?
Give reason for the following:
Helium replaced hydrogen in weather observation balloons?
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MULTIPLE CHOICE QUESTIONS
Which is the lightest of all elements?
- hydrogen
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- none of these
FILL IN THE BLANK
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The compounds of carbon and hydrogen are called .................
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Chlorine acts as an ______ agent.
Give a chemical test to distinguish between the following gases:
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Write a correctly balanced equation for the following:
When steam is passed over red hot iron.
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sodium hydroxide solution + zinc → ?
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A mixture of hydrogen and chlorine can be separated by passage through a porous pot.
