A displacement reaction in which a metal above hydrogen in the reactivity series, displaces another metal from the solution of its compound.
Question types
Chemical Reactions question types
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33
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5
Question groups
5
Question types
01
[2 Mark Question Answer]
7 Q→02[3 Mark Question Answer]
10 Q→03[5 Mark Question Answer]
6 Q→04Fill in the blanks.
5 Q→05MCQ
5 Q→Sample Questions
Chemical Reactions questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
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A catalytic, reversible, exothermic reaction.
A thermal decomposition reaction in which a metallic nitrate decomposes to give $–$ a basic oxide.
View full solution →A reaction of direct combination i.e. synthesis In which two gases combine to give another gas $–$ which turns lime
water milky.
View full solution →water milky.
A thermal decomposition reaction in which a compound decomposes to give two new compounds.
An acidic oxide $\&$ a basic oxide.
View full solution →A catalyst $\&$ a promoter.
View full solution →Electrolytic decomposition $\&$ photochemical decomposition.
View full solution →Neutralization reaction $\&$ a precipitation reaction.
View full solution →Thermal decomposition & thermal dissociation.
Match the chemical reactions in List $I$ with the appropriate answer in List $II$.
View full solution →State what is meant by ‘reactivity series of metals’. With reference to $- (a)$ Water $(b)$ Acids explain with suitable examples how the reactivity of the metals could be differentiated.
View full solution →Give balanced equations for $–$
View full solution →- A direct combination reaction involving two elements, one of which is a nonmetal
- A thermal decomposition reaction involving heat on limestone $[$calcium carbonate$]$
- An electrolytic decomposition reaction involving a neutral liquid
- A displacement reaction involving a metal above hydrogen in the activity series with copper $\ce{[II]}$ sulphate solution
- A double decomposition neutralization reaction involving an acid $\&$ a base
- A white precipitate obtained during a double decomposition reaction involving a silver salt with a sodium salt.
Give two examples each of the following oxides $–$
$(a)$ Acidic oxides
$(b)$ Basic oxides
$(c)$ Amphoteric oxides
$(d)$ Neutral
oxides. State which of the following oxides Le. $(a)$ to $(d)$
$(i)$ React with water to give a base
$(ii)$ React with a base to give salt $\&$ water
$(iii)$ React with acids $\&$ bases to give salt $\&$ water.
View full solution →$(a)$ Acidic oxides
$(b)$ Basic oxides
$(c)$ Amphoteric oxides
$(d)$ Neutral
oxides. State which of the following oxides Le. $(a)$ to $(d)$
$(i)$ React with water to give a base
$(ii)$ React with a base to give salt $\&$ water
$(iii)$ React with acids $\&$ bases to give salt $\&$ water.
Certain thermal decomposition reactions, result in formation of oxides. Give balanced equations for the thermal decomposition of the following, which result in formation of a metallic oxide,
$(a)$ Limestone
$(b)$ Lead carbonate
$(c)$ Calcium nitrate
$(d)$ Calcium hydroxide.
View full solution →$(a)$ Limestone
$(b)$ Lead carbonate
$(c)$ Calcium nitrate
$(d)$ Calcium hydroxide.
The metal which reacts with steam and the reaction is reversible is $……… [$calciumiron$].$
View full solution →The reaction of coke with steam to give water gas is an example of an $……… [$exothermic$/$endothermic$]$ reaction.
View full solution →The element molybdenum used in the reaction of nitrogen with hydrogen at elevated temperatures is an example of a $…..… [$promoter$/$catalyst$]$.
View full solution →Decomposition of silver salts in the presence of sunlight is an example of $……… [$double decomposition$/$ photochemial decomposition$].$
View full solution →Direct combination reaction of phosphorus pentoxide with water gives $\ce{[H_3PO_3 / H_3PO_4}]$.
View full solution →A neutral oxide which does not react with an acid or a base to give salt $\&$ water.
- AOxygen
- BHydrogen
- ✓Carbon monoxide
- DIron
Answer: C.
View full solution →The catalyst used in the catalystic reaction involving the reactants nitrogen $\&$ hydrogen.
- ✓Iron
- BHydrogen
- COxygen
- DCarbon monoxide
Answer: A.
View full solution →The displaced product of the displacement reaction of sodium with cold water.
- AIron
- BOxygen
- ✓Hydrogen
- DCarbon monoxide
Answer: C.
View full solution →The neutral gas obtained on thermal decomposition of potassium nitrate.
- ACarbonic acid
- BHydrogen
- ✓Oxygen
- DCarbon monoxide
Answer: C.
View full solution →The product formed during direct combination reaction of carbon dioxide $\&$ water.
- AIron
- ✓Carbonic acid
- CHydrogen
- DOxygen
Answer: B.
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