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प्रश्न
Can a nickel spatula be used to stir copper sulphate solution? Justify your answer.
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उत्तर
No, a nickel spatula cannot be used to stir CuSO4 solution, because Nickel will displace copper from CuSO3 solution and Cu gets deposited on the Ni spatula.
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संबंधित प्रश्न
Complete and balance the following chemical equation:
\[\ce{Pb(NO3)2 ->[Heat]}\]
Complete and balance the following chemical equations:
Ba`"CI"_2` + `"H"_2"SO"_4` `→`
(aq.) (aq.)
MULTIPLE CHOICE QUESTIONS
Tick the most appropriate answer.
Which one of the following alters the rate of the chemical reaction without itself undergoing any change?
- temperature and Pressure
- concentration of reactants
- presence of catalyst
- none of these
FILL IN THE BLANK
Positively charged ions are called ........
TRUE \ FALSE
Electrolytic refining is a method in which a thin coating of a metal is done over another metal.
State the type of reactions for the following represent and balance the ones that are not balanced.
NaOH + HCl → NaCl + H2O
Give an example of a photochemical reaction.
Burning of paper is a ______ change.
State whether the following statement is true or false:
When a candle burns, both physical and chemical changes take place.
What is the difference between reactants and products?
