Types Of Chemical Reactions

Methane + Oxygen $\to$ A + Water. Identify A.
1. Carbon monoxide
2. Carbon dioxide
3. Ethane
4. LPG
As the molecules is dissociated by the absorption of heat it is otherwise called as:
1. Thermolysis
2. Photolysis
3. Electrolysis
4. None of these
Decomposition of the molecule occurs on passing an electric current through its aqueous solution. This process is termed as:
1. Thermolysis
2. Photolysis
3. Electrolysis
4. None of these
As the decomposition is caused by light, this kind of reaction is called:
1. Thermolysis
2. Photolysis
3. Electrolysis
4. None of these
Which one of the following is a more reactive element?
1. Cu
2. Li
3. Zn
4. Pb
Double displacement reaction is also called as:
1. Metastasis
2. Metathesis
3. Methanolysis
4. Metalysis
KI and $P b {(N O_{3})}_{2}$ solutions are mixed to give a precipitate. What is the colour of the precipitate?
1. White
2. Brown
3. Red
4. Yellow
Which one of the following is the least reactive element?
1. Au
2. Fe
3. Ca
4. Na
The reaction of sodium hydroxide with hydrochloric acid is an example of:
1. Combination reaction
2. Thermolysis reaction
3. Neutralization reaction
4. Precipitation reaction
Most of the reactions go faster at:
1. Low temperature
2. Moderate temperature
3. $0 ° C$
4. High temperature
The role of mangenese dioxide in the decomposition of potassium chlorate is:
1. Act as a reactant
2. Act as a catalyst
3. Act as a reagent
4. Act as a reaction medium
The ionic product of water $K_{W}$ is:
1. $K_{W} = [H_{3} O^{+}] [O H^{+}]$
2. $K_{W} = \frac{[H_{3} O^{+}]}{[O H^{-}]}$
3. $K_{W} = [H_{3} O^{+}] [O H^{-}]$
4. $K_{W} = [H_{3} O^{-}] [O H^{+}]$
Unit of ionic product of water is:
1. $m o l^{- 2} d m^{- 6}$
2. $m o l^{2} d m^{- 6}$
3. $m o l^{2} d m^{6}$
4. $m o l d m^{- 3}$
What is the value of ionic product of water?
1. $1 \times 10^{- 4}$
2. $1 \times 10^{- 1}$
3. $1 \times 10^{14}$
4. $1 \times 10^{- 14}$
pH of milk of magnesia is:
1. 10
2. 15
3. 14
4. 10.5
What is the relationship between pH and pOH?
1. pH - pOH = 14
2. pH + pOH = 14
3. None of these
4. pH + pOH = 1.4
$Z n + 2 H C l \to Z n C l_{2} + H_{2} ↑$
The above reaction is an example of:
1. Combination reaction
2. Double displacement reaction
3. Displacement reaction
4. Decomposition reaction
A student tests the pH of pure water using a pH paper. It shows a green colour. If a pH paper is dipped after adding lemon juice to water, what colour will he observe?
1. Green
2. Red
3. Yellow
4. Pink
When aqueous solution of silver nitrate and sodium chloride are mixed, the precipitate is formed immediately. What is the colour of the precipitate?
1. White
2. Yellow
3. Red
4. Black
$p H = - \log_{10} [H^{+}]$ . The pH of a solution containing hydrogen ion concentration of 0.001 M solution is:
1. 3
2. 11
3. 14
4. 15
Silver anklet has got tarnished due to the formation of:
1. $A g_{2} O$
2. $A g N O_{3}$
3. $A g_{2} S$
4. $A g B r$
The colour of the precipitate formed by the reaction of lead nitrate with potassium ioide is:
1. White
2. Yellow
3. Black
4. Red
The reaction of calcium oxide with water is:
1. Exothermic reaction
2. Endothermic reaction
3. Isothermic reaction
4. Adiabatic reaction
The gas released when calcium carbonate reacts with dilute hydrochloric acid is:
1. $N O_{2}$
2. $C O$
3. $C O_{2}$
4. $H_{2}$
The chemical used in white washing on the walls is:
1. $C a O$
2. $C a C l_{2}$
3. $C a O C l_{2}$
4. $C a (O H)_{2}$
The chemical formula of marble is:
1. $C a C O_{3}$
2. $C a O C l_{2}$
3. $C a S O_{4} . \frac{1}{2} H_{2} O$
4. $C a (O H)_{2}$
Combustion of coal is an example of:
1. Displacement reaction
2. Reduction reaction
3. Decomposition reaction
4. Combination reaction
The colour change takes place when copper carbonate is strongly heated is:
1. Green to black
2. Green to blue
3. Blue to green
4. Blue to black
The reaction of heat on copper carbonate into copper (II) oxide is:
1. Comnination reaction
2. Decomposition reaction
3. Displacement reaction
4. Redox reaction
The factor that affects the rate of the chemical reaction is:
1. Temperature
2. Concentration
3. Catalyst
4. All the above

Types Of Chemical Reactions

Quiz