Most Important Questions for Class 10. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Fundamental Theorem of Arithmetic in the chapter Real Numbers.
A. A rational p/q in lowest terms has a terminating decimal if q has only 2 and/or 5 as prime factors
B. Fundamental Theorem of Arithmetic (statement)
C. Every composite number can be expressed as a product of primes, unique except for the order of factors
D. Euclid’s algorithm finds HCF by repeated division: HCF(a,b)=HCF(b,a mod b)
Answer
C. Every composite number can be expressed as a product of primes, unique except for the order of factors
Explanation
Every composite number can be expressed as a product of primes, unique except for the order of factors. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Irrational numbers in the chapter Real Numbers.
A. Euclid’s algorithm finds HCF
B. HCF × LCM = product of two positive integers
C. √2, √3 and √5 are irrational; they cannot be written as p/q with integers p, q ≠ 0
D. HCF is the product of smallest powers and LCM the product of greatest powers of common primes
Answer
C. √2, √3 and √5 are irrational; they cannot be written as p/q with integers p, q ≠ 0
Explanation
√2, √3 and √5 are irrational; they cannot be written as p/q with integers p, q ≠ 0. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Real Numbers in the chapter Real Numbers.
A. This idea is not part of the NCERT chapter
B. Terminating decimals: denominator 2^m 5^n after simplifying
C. Fundamental Theorem of Arithmetic (statement)
D. Every composite number can be expressed as a product of primes, unique except for the order of factors
Answer
C. Fundamental Theorem of Arithmetic (statement)
Explanation
Fundamental Theorem of Arithmetic (statement). The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Real Numbers in the chapter Real Numbers.
A. √2, √3 and √5 are irrational; they cannot be written as p/q with integers p, q ≠ 0
B. The textbook says the opposite of this statement
C. For two positive integers, HCF × LCM equals the product of the numbers
D. Euclid’s algorithm finds HCF
Answer
D. Euclid’s algorithm finds HCF
Explanation
Euclid’s algorithm finds HCF. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Mathematics · Chapter: Real Numbers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Balanced equation in the chapter Chemical Reactions and Equations.
A. An exothermic reaction releases heat to the surroundings
B. A decomposition reaction splits one compound into two or more products, often with heat, light or electricity
C. Mass need not be conserved
D. A balanced chemical equation has the same number of atoms of each element on both sides
Answer
D. A balanced chemical equation has the same number of atoms of each element on both sides
Explanation
A balanced chemical equation has the same number of atoms of each element on both sides. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Redox in the chapter Chemical Reactions and Equations.
A. Combination, decomposition, displacement, double displacement
B. Precipitation reactions
C. Oxidation and reduction occur together in a redox reaction
D. An endothermic reaction absorbs heat from the surroundings
Answer
C. Oxidation and reduction occur together in a redox reaction
Explanation
Oxidation and reduction occur together in a redox reaction. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Chemical Reactions and Equations in the chapter Chemical Reactions and Equations.
A. A chemical equation must be balanced for mass
B. A balanced chemical equation has the same number of atoms of each element on both sides
C. Redox: oxidation is gain of oxygen or loss of electrons as taught
D. This idea is not part of the NCERT chapter
Answer
A. A chemical equation must be balanced for mass
Explanation
A chemical equation must be balanced for mass. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Chemical Reactions and Equations in the chapter Chemical Reactions and Equations.
A. In a combination reaction two or more substances join to form a single product
B. The textbook says the opposite of this statement
C. Oxidation and reduction occur together in a redox reaction
D. Precipitation reactions
Answer
D. Precipitation reactions
Explanation
Precipitation reactions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to The Rise of Nationalism in Europe in the chapter The Rise of Nationalism in Europe.
A. The Rise of Nationalism in Europe is an NCERT chapter taught in CBSE Class 10 Social Science
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. German and Italian unification
D. The French Revolution seeded nationalism
Answer
D. The French Revolution seeded nationalism
Explanation
The French Revolution seeded nationalism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Social Science · Chapter: The Rise of Nationalism in Europe · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to The Rise of Nationalism in Europe in the chapter The Rise of Nationalism in Europe.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Mix MCQs with short answers so you remember both facts and explanations from The Rise of Nationalism in Europe
C. Nationalism could also exclude minorities
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. Nationalism could also exclude minorities
Explanation
Nationalism could also exclude minorities. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Social Science · Chapter: The Rise of Nationalism in Europe · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter The Rise of Nationalism in Europe.
A. This idea is not part of the NCERT chapter
B. The French Revolution seeded nationalism
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Write three points from The Rise of Nationalism in Europe in your own words; that is enough for a short-answer start
Answer
C. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Social Science · Chapter: The Rise of Nationalism in Europe · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter The Rise of Nationalism in Europe.
A. The textbook says the opposite of this statement
B. Liberalism in the 19th century
C. Mix MCQs with short answers so you remember both facts and explanations from The Rise of Nationalism in Europe
D. Nationalism could also exclude minorities
Answer
C. Mix MCQs with short answers so you remember both facts and explanations from The Rise of Nationalism in Europe
Explanation
Mix MCQs with short answers so you remember both facts and explanations from The Rise of Nationalism in Europe. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Social Science · Chapter: The Rise of Nationalism in Europe · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to A Letter to God in the chapter A Letter to God.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Post office employees help
C. A Letter to God is an NCERT chapter taught in CBSE Class 10 English
D. Lencho writes to God for money
Answer
D. Lencho writes to God for money
Explanation
Lencho writes to God for money. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: English · Chapter: A Letter to God · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Theme in the chapter A Letter to God.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Theme: faith
C. Mix MCQs with short answers so you remember both facts and explanations from A Letter to God
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Theme: faith
Explanation
Theme: faith. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: English · Chapter: A Letter to God · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter A Letter to God.
A. This idea is not part of the NCERT chapter
B. Write three points from A Letter to God in your own words; that is enough for a short-answer start
C. Lencho writes to God for money
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: English · Chapter: A Letter to God · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter A Letter to God.
A. Theme: faith
B. The textbook says the opposite of this statement
C. Mix MCQs with short answers so you remember both facts and explanations from A Letter to God
D. Hailstorm destroys the crop
Answer
C. Mix MCQs with short answers so you remember both facts and explanations from A Letter to God
Explanation
Mix MCQs with short answers so you remember both facts and explanations from A Letter to God. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: English · Chapter: A Letter to God · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-10/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Most Important Questions” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
