Curriculum

Ncert-Class 10 Science - Chemistry

Chapter 1 - Chemical Reaction and Equation

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Short Notes -Class10-Chemistry- Chapter 1 - Chemical Reaction and Equation

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Short Notes 2-Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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PRACTICE TEST 1 -Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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PRACTICE TEST 2-Class 10 – Science -Chemistry -Chapter 1 – Chemical Reaction and Equation

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Very Short Answer-Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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Short Answer -Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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Long Answer -Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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POINTS TO REMEMER-Class 10 - Science -Chemistry -Chapter 1 - Chemical Reaction and Equation

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chapter 2- Acids, Bases and Salt

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KEY NOTES -Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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KEY NOTES -pH Scale-Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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PRACTICE TEST -1-Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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PRACTICE TEST -2-Class 10 – Science -Chemistry -chapter 2- Acids, Bases and Salt

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VERY SHORT ANSWER -Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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SHORT ANSWER -Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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LONG ANSWER-Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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POINTS TO REMEMER-Class 10 - Science -Chemistry -chapter 2- Acids, Bases and Salt

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Chapter 3 – Metals and Non-metals

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KEY NOTES 1-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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KEY NOTES 2-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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KEY NOTES - iconic compound- Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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PRACTICE TEST 1-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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PRACTICE TEST 2-Class 10 – Science -Chemistry -Chapter 3 – Metals and Non-metals 2

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VERY SHORT ANSWER-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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SHORT ANSWER-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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Long ANSWER-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals

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POINTS TO REMEMER-Class 10 - Science -Chemistry -Chapter 3 – Metals and Non-metals a

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Chapter 4 – Carbon and its Compounds

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KEY NOTES - Carbon-Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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KEY NOTES - Chemical Properties -Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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PRACTICE TEST- 1-Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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PRACTICE TEST -2-Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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VERY SHORT ANSWER -Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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SHORT ANSWER -Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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LONG ANSWER -Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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POINTS TO REMEMBER-Class 10 - Science -Chemistry -Chapter 4 – Carbon and its Compounds

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Assertion and Reason chemistry

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Assertion and Reason-Class 10 - Science -Chemistry

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CASE BASED QUESTIONS

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CASE BASED QUESTION-Class 10 - Science -Chemistry

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Assertion and Reason-Class 10 – Science -Chemistry

Assertion and Reason

Class 10 - ASSERTION AND REASON - Chemistry Mock Test.

This Test Consist of 20 Questions

Total Time - 20 -Minutes

Assertion(A): The aqueous solution of glucose and alcohol do not show acidic character.

Reason(R ): Aqueous solution of glucose and alcohol do not give H+ ions .

Both A and R are true and R is not the correct explanation of A.

A is false but R is true.

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

None

Assertion (A): MnO2 + 4HCl → MnCl2 + Cl2 + 2H2O is redox reaction.

Reason (R): MnO2 oxidises HCl to Cl2 and gets reduced to MnCl2.

If Assertion is incorrect but Reason is correct.

If Assertion is correct but Reason is incorrect.

If both Assertion and Reason are correct and reason is the correct explanation of Assertion.

If both Assertion and Reason are correct, but reason is not the correct explanation of Assertion.

None

Assertion (A): In alkanes, alkenes and alkynes the valency of carbon is always four.

Reason (R): All hydrocarbons except alkanes contain double bonds.

A is false but R is true.

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

Both A and R are true but R is not the correct explanation of A.

None

Assertion (A): The functional group present in alcohols is – OH.

Reason (R): It is the same group as present in water, hence water and alcohol have similar properties.

A is true but R is false.

A is false but R is true.

Both A and R are true and R is the correct explanation of A.

Both A and R are true but R is not the correct explanation of A.

None

Assertion (A): HCl gas does not change the colour of dry blue litmus paper.

Reason (R): HCl gas dissolves in the water present in wet litmus paper to form H+ ions

A is false but R is true.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is true but R is false.

None

.Assertion (A): Rusting of iron is a slow combustion

Reason (R): Iron slowly reacts with oxygen and form iron oxide.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The statement of the Assertion is false but the Reason is true.

Assertion is true but the Reason is false.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

None

Assertion: Copper does not reacts with the H2SO4.

Reason: Copper is more reactive than hydrogen.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Assertion is true but the Reason is false.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The statement of the Assertion is false but the Reason is true.

None

Assertion: Silver becomes black in colour when exposed to atmosphere.

Reason: Silver reacts with H2S gas to form Ag2S which is black in colour.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Assertion is true but the Reason is false.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

statement of the Assertion is false but the Reason is true.

None

Assertion (A): Iron is the most widely used metal.But it is never used in its pure state.

Reason (R): Pure iron is very soft and stretches easily when hot.

Assertion is true but the Reason is false.

The statement of the Assertion is false but the Reason is true.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

None

10.

Assertion (A): On heating, colour of hydrated copper sulphate changes from blue to white.

Reason (R) :On strong heating , Copper sulphate crystals lose all the water of crystallisation and form anhydrous salt.

A is false but R is true.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

Both A and R are true and R is not the correct explanation of A.

None

11.

Assertion(A): Weak acids have low electrical conductivity.

Reason(R ): Strong acids and weak acids have equal concentration of H+ ions in their solutions.

A is true but R is false.

Both A and R are true and R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

None

12.

Assertion: Nitrogen is a non-metal.

Reason: Nitrogen has 5 valence electrons.

Assertion is true but the Reason is false.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

statement of the Assertion is false but the Reason is true.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

None

13.

Assertion: During the reaction esterification esters are produced.

Reason: Esters are sweet smelling compounds.

Assertion is true but the Reason is false.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The statement of the Assertion is false but the Reason is true.

None

14.

Assertion (A): Photosynthesis is considered as an endothermic reaction.

Reason (R): Energy gets released in the process of photosynthesis

If both Assertion and Reason are correct, but reason is not the correct explanation of Assertion.

If both Assertion and Reason are correct and reason is the correct explanation of Assertion.

If Assertion is incorrect but Reason is correct.

If Assertion is correct but Reason is incorrect.

None

15.

Assertion(A) : Carbon is the only element that can form large number of compounds.

Reason (R) : Carbon is tetravalent and shows the property of catenation.

A is true but R is false.

Both A and R are true but R is not the correct explanation of A.

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

None

16.

Assertion (A) : The acid must be added to water with constant stirring.

Reason(R) : Mixing of an acid with water decreases the concentration of H+ ions per unit volume.

Both A and R are true and R is not the correct explanation of A.

A is true but R is false.

Both A and R are true and R is the correct explanation of A.

A is false but R is true.

None

17.

Assertion(A) : Diamond and graphite are allotropes of carbon.

Reason (R) : Some elements can have several different structural forms while in the same physical state. These forms are called allotropes.

A is true but R is false.

Both A and R are true but R is not the correct explanation of A.

A is false but R is true.

Both A and R are true and R is the correct explanation of A.

None

18.

Assertion (A): All non metals are insulators.

Reason (R): Graphite is a good conductor of electricity.

Assertion is true but the Reason is false.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The statement of the Assertion is false but the Reason is true.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion

None

19.

Assertion: Ethanoic acid reacts with ethyl alcohol in presence of conc H2SO4 to form ethyl ethanoate.

Reason: Esters are used in ice creams and cold drinks.

Both the Assertion and the Reason are correct and the Reason is the correct explanation of the Assertion.

The statement of the Assertion is false but the Reason is true.

The Assertion and the Reason are correct but the Reason is not the correct explanation of the Assertion.

Assertion is true but the Reason is false.

None

20.

Assertion (A): When HCl is added to zinc granules, a chemical reaction occurs.

Reason (R): Evolution of a gas indicates that the chemical reaction is taking place.

If both Assertion and Reason are correct, but reason is not the correct explanation of Assertion.

If both Assertion and Reason are correct and reason is the correct explanation of Assertion.

If Assertion is incorrect but Reason is correct.

If Assertion is correct but Reason is incorrect

None

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