Advertisements
Advertisements
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)
Rusting of iron is a ______ chemical change.
Advertisements
उत्तर
Rusting of iron is a slow chemical change.
संबंधित प्रश्न
Is kerosene an electrolyte or a non-electrolyte ?
Fill in the blank.
Melting of ice is a _______ change.
Fill in the blank:
The substances formed as a result of a chemical reaction are called _______
Name the type of chemical reaction shown by the following equation:
Fe + CuSO4 → FeSO4 + Cu
Name the type of chemical reaction shown by the following equation :
Fe2O3 + 2Al → Al2O3 + 2Fe
Choose the correct option from the bracket and explain the statement giving reason.
(Oxidation, displacement, electrolysis, reduction, zinc, copper, double displacement, decomposition)
To prevent rusting, a layer of ______ metal is applied on iron sheets.
Show with the help of diagram of electronic configuration how the following compound is formed from the constituent atoms.
Hydrogen chloride
Name: A greenish-yellow gas.
Give a chemical test to distinguish between the following gases.
NH3 and HCl
Chemical change is a temporary change.
