Advertisements
Advertisements
Question
Which of the following is the correct observation of the reaction shown in the above set up?
Options
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
Solution
Magnesium ribbon burns with brilliant white light.
APPEARS IN
RELATED QUESTIONS
Balance the chemical equation.
\[\ce{HNO3 +Ca(OH)2 -> Ca(NO3)2 + H2O}\]
Translate the following statement into a chemical equation and then balance the equation:
Phosphorus burns in oxygen to give phosphorus pentoxide.
Balance the following equation:
\[\ce{Mg(OH)2 + HCl -> MgCl2 + H2O}\]
With the help of an appropriate example, justify that some of the chemical reactions are determined by the evolution of a gas.
Give a chemical equation for the reaction involved in the above case.
The chemical equations are balanced to satisfy one of the following laws in chemical reactions. This law is known as ______.
When the solution of substance X is added to a solution of potassium iodide, then a yellow solid separates out from the solution.
- What do you think substance X is likely to be?
- Name the substance which the yellow solid consists of.
- Which characteristic of chemical reactions is illustrated by this example?
- Write a balanced chemical equation for the reaction which takes place. Mention the physical states of all the reactants and products involved in the chemical equation.
The metal M reacts vigorously with water to form a solution S and a gas G. The solution S turns red litmus to blue whereas gas G, which is lighter than air, burns with a pop sound. Metal M has a low melting point and it is used as a coolant in nuclear reactors.
- What is metal M?
- What is solution S? Is it acidic or alkaline?
- What is gas G?
- Write a balanced chemical equation for the reaction which takes place when metal M reacts with water.
- Is this reaction exothermic or endothermic?
Write the balanced chemical equation of the following reaction. sodium hydroxide + sulphuric acid → sodium sulphate + water
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
\[\ce{C +2S -> CS2}\]
Balance the following simple equation:
NO + O2 → NO2
