Advertisements
Advertisements
प्रश्न
Which of the following is the correct observation of the reaction shown in the above set up?
विकल्प
Brown powder of Magnesium oxide is formed.
Colourless gas which turns lime water milky is evolved.
Magnesium ribbon burns with brilliant white light.
Reddish brown gas with a smell of burning Sulphur has evolved.
Advertisements
उत्तर
Magnesium ribbon burns with brilliant white light.
APPEARS IN
संबंधित प्रश्न
Balance the gievn equation:
NaOH + H2SO4 
Na2SO4 + H2O
What is meant by chemical reaction? Explain with the help of an example.
The chemical reaction between two substances is characterised by a change in colour from orange to green. These two substances are most likely to be:
(a) potassium dichromate solution and sulphur dioxide
(b) potassium permanganate solution and sulphur dioxide
(c) potassium permanganate solution and lemon juice
(d) potassium dichromate solution and carbon dioxide.
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is know as:
(a) law of conservation of momentum
(b) law of conservation of mass
(c) law of conservation of motion
(d) law of conservation of magnetism
Balance the equation stepwise.
Ag(s) + HCl(aq) → AgCl ↓+ H2 ↑
Balance the following equation:
Ca + N2 → Ca3N2
Write the balanced chemical equation of the following reaction.
ammonia + oxygen → nitric oxide + water
Write the balanced chemical equation of the following reaction.
zinc sulphide + oxygen → zinc oxide + sulphur dioxide
Balance the following simple equation:
Fe2O3 + CO → Fe + CO2
Underline the compound in the equation given below, it is incorrectly balanced and write the correct balancing for the same.
C2H5OH + 3O2 → 2CO2 + 2H2O
