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प्रश्न
Complete the table given below.
| Addition of dil. H2SO4 to zinc | Test for gas evolved |
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उत्तर
| Addition of dil. H2SO4 to zinc | Test for gas evolved | The gas [H2] evolved burns with 'pop' sound and burns with pale blue flame |
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संबंधित प्रश्न
Complete and balance the following chemical equations:
Ba`"CI"_2` + `"H"_2"SO"_4` `→`
(aq.) (aq.)
FILL IN THE BLANK
A .............. change is a temporary change.
Explain the type of reactions on the basis of the direction of reaction.
Define chemical reaction.
Fill in the blank:
The basic conditions necessary for a chemical reaction is _______
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
The conversion of ferrous sulphate to ferric sulphate is ______ reaction.
Give an example of a reaction where the following are involved:
Close contact
State the type of reactions for the following represent and balance the ones that are not balanced.
NaOH + HCl → NaCl + H2O
Name the gases which turn moist red litmus blue.
The changes in which new substance with new chemical properties are formed are ______.
