Advertisements
Advertisements
प्रश्न
Burning of paper is a ______ change.
विकल्प
physical
chemical
physical and chemical
neutral
उत्तर
Burning of paper is a chemical change.
APPEARS IN
संबंधित प्रश्न
State whether the following statement is true or false. In case a statement is false, write the corrected statement.
Iron pipes coated with zinc do not get rusted easily.
How do the following help in bringing about a chemical change?
pressure.
FILL IN THE BLANK
In a double decomposition precipitation reaction both the reactants must be ............ soluble.
FILL IN THE BLANK
Positively charged ions are called ........
Fill in the blank.
Melting of ice is a _______ change.
Give a chemical test to distinguish between the following gases.
SO2 and Cl2
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium chloride
Give balanced equation for the following conversion affected by heat alone on the substance:
Hydrated copper sulphate to sulphur dioxide
State the following reaction represent oxidation or reduction.
\[\ce{Al->Al+++}\]
When an aqueous solution of potassium chloride is added to an aqueous solution of silver nitrate, a white precipitate is formed. Give the chemical equation of this reaction.
