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प्रश्न
Complete the statement by filling the gaps using appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
Electron ______ is complete in each hydrogen in a hydrogen molecule.
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उत्तर
Electron duplet is complete in each hydrogen in a hydrogen molecule.
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
pressure.
FILL IN THE BLANK
A .............. change is a temporary change.
TRUE \ FALSE
Electrolytic refining is a method in which a thin coating of a metal is done over another metal.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Sodium chloride
Give an example of a reaction where the following are involved
Heat
Name affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Complete the following table and write your observations.
|
Hydrogen sulphide |
Ammonia |
Sulphur dioxide |
Hydrogen chloride |
|
|
Shake the gas with red litmus solution |
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Shake the gas with blue litmus solution |
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Apply a burning splint to a gas |
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
Give balanced equation for the following conversion affected by heat alone on the substance:
Copper nitrate to nitrogen dioxide
Burning of paper is a ______ change.
