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Chemistry
Chemical reactions
We can get the smell of perfume sitting several metres away due to
A) Particles have high density
B) Particles settle down at the ground
C) Particles diffuses rapidly
D) Particles are not volatile
Chemistry
Chemical reactions
Complete the reaction-

Chemistry
Chemical reactions
How many products are formed in the given reaction?

Chemistry
Chemical reactions
What happens when aqueous solutions of calcium chloride and of sodium carbonate are mixed?

Chemistry
Chemical reactions
What is $X$ in the following reaction?

(A) $C{H_3}OH,{H_2}S{O_4}$
(B) $C{H_3}OH,C{H_3}{O^ - }N{a^ + }$
(C) ${H_2}O/{H_2}S{O_4}$ followed by $C{H_3}OH$
(D) $C{H_3}MgBr/ether$ followed by ${H_3}{O^ + }$

Chemistry
Chemical reactions
Draw graph which is used to calculate the activation energy of a reaction. Write the appropriate equation used to calculate the activation energy graphically.

Chemistry
Chemical reactions
What is the cause of the chemical reaction?

Chemistry
Chemical reactions
Which is a reaction that absorbs energy?
A. Exothermic
B. Particle size
C. Endothermic
D. Catalyst
E. Concentration

Chemistry
Chemical reactions
What occurs during a decomposition reaction?

Chemistry
Chemical reactions
Explain how $Zn+2AgN{{O}_{3}}\text{ }\to 2Ag+Zn{{\left( N{{O}_{3}} \right)}_{2}}$ ​is a redox reaction.

Chemistry
Chemical reactions
Which of the following reactions takes place during formation of ionic bonds?
(A) Redox reaction
(C) Substitution reaction
(D) Elimination reaction

Chemistry
Chemical reactions
In which of the following, the reaction proceeds towards completion?
(A) $K = 1$
(B) $K = {10^{ - 2}}$
(C) $K = 10$
(D) $K = {10^3}$
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