Physical and Chemical Change

Which of the following methods is suitable for preventing an iron frying pan from rusting?

When the fermentation of fructose results in the bitter product mannitol, the fermentation is sometime termed as-

Any system that is not at equilibrium

Which of the following statement(s) is/are correct regarding recognising a chemical change involving organic compounds?

A. Ripening of fruit

B. Burning of natural gas

C. Formation of steel

Which of the following is not an example of a chemical change?

Which of the following is not a property of chemical change?

Which of these is an example of chemical change taking place in our daily life?

$Pb{\left(N{O}_3\right)}_2 \left(aq\right)+2KI\left(aq\right)\to 2KN{O}_3\left(aq\right)+Pb{I}_2 \left(s\right)$ is an example of _____ reaction.

$BaC{l}_2\left(aq\right) + N{a}_{2}S{O}_4\left(aq\right)\underset{}{\to }BaS{O}_4\left(s\right)+2NaCl\left(aq\right)$ is an example _____ reaction.

Which of the following chemical reactions is a type of double displacement reaction?

Thermite process is an application of which of the following chemical reactions?

$HCl + NaOH \underset{}{\to } NaCl + H_{2}O$ is an example of _____ reaction.

$MgO + C{O}_2 \underset{}{\to } MgC{O}_3$ is an example of _____ reaction.

$4Fe + 3O_2 \underset{}{\to 2} F{e}_2{O}_3$ is an example of _____ reaction.

Which of the following is a type of combination reaction?

$CaO + H_{2}O \underset{}{\to }Ca{\left(OH\right)}_2$ is an example of _____ reaction.

$2H_2 + O_2\stackrel{}{\to } 2H_{2}O$ is a ______ reaction.

Which of the following processes is condensation?

Which of the following rates of condensation through evaporation is measured?

Condensation happens most often when a vapour is: