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प्रश्न
Name: Gas with rotten egg smell.
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उत्तर
Hydrogen sulphide.
H2S
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संबंधित प्रश्न
Fill in the blank
A catalyst either ................or ............... the rate of a chemical change but itself remains ............... at the end of the reaction.
Write true or false .
A black residue is formed when sugar is heated .
Multiple choice:
A reaction of a type: AB + CD → AD + CD, involves
What do you observe? When
Water is added to the quick lime.
Give an example of the following chemical changes.
A reaction involving
(i) Change of state
(ii) formation of precipitate
Name: A brown gas
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
Can a nickel spatula be used to stir copper sulphate solution? Justify your answer.
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