9 std question paper 2019 with questions and answers

Studying past question papers helps students prepare effectively for exams by understanding the question format and key topics. Here’s a detailed question and answer set for all subjects.

Mathematics

Question: Solve: 2x + 3 = 11.
Answer: x = 4.

Question: Simplify: (4/5) × (15/8).
Answer: 3/2.

Question: Find the area of a triangle with base 10 cm and height 6 cm.
Answer: 30 cm².

Question: Evaluate: 3⁴.
Answer: 81.

Question: Solve for y: 3y – 5 = 16.
Answer: y = 7.

Question: Convert 0.75 into a fraction.
Answer: 3/4.

Question: Find the HCF of 24 and 36.
Answer: 12.

Question: If a = 2 and b = 3, find a² + b².
Answer: 13.

Question: Write the next term in the sequence: 2, 4, 8, 16.
Answer: 32.

Question: Solve: 7x = 49.
Answer: x = 7.

Question: Calculate the perimeter of a square with side length 5 cm.
Answer: 20 cm.

Question: Find the value of 5!.
Answer: 120.

Question: What is the value of √144?
Answer: 12.

Question: Express 25% as a fraction.
Answer: 1/4.

Question: Evaluate: 2x³ when x = 2.
Answer: 16.

Question: Find the LCM of 6 and 8.
Answer: 24.

Question: What is the value of 2⁰?
Answer: 1.

Question: Convert 3/8 into a decimal.
Answer: 0.375.

Question: Find the sum of angles in a triangle.
Answer: 180°.

Question: Solve: 15 – 3x = 6.
Answer: x = 3.

Science

Question: What is the chemical formula for water?
Answer: H₂O.

Question: Define photosynthesis.
Answer: Photosynthesis is the process by which green plants make their own food using sunlight, carbon dioxide, and water.

Question: Name the unit of force in the SI system.
Answer: Newton.

Question: What is the boiling point of water?
Answer: 100°C.

Question: What is the main function of red blood cells?
Answer: To carry oxygen to different parts of the body.

Question: What is the pH value of a neutral substance?
Answer: 7.

Question: State the law of conservation of energy.
Answer: Energy can neither be created nor destroyed; it can only be transformed from one form to another.

Question: Name the gas responsible for global warming.
Answer: Carbon dioxide (CO₂).

Question: What is the formula for calculating speed?
Answer: Speed = Distance / Time.

Question: Name the three states of matter.
Answer: Solid, liquid, gas.

Question: Define an atom.
Answer: An atom is the smallest unit of matter that retains the properties of an element.

Question: What is the primary source of energy for the Earth?
Answer: The Sun.

Question: Name the organelle responsible for cellular respiration.
Answer: Mitochondria.

Question: What is the chemical formula for common salt?
Answer: NaCl.

Question: Define inertia.
Answer: Inertia is the tendency of an object to resist changes in its state of motion or rest.

Question: What is the role of chlorophyll in photosynthesis?
Answer: Chlorophyll absorbs sunlight, which is necessary for photosynthesis.

Question: Name the largest planet in our solar system.
Answer: Jupiter.

Question: What is the primary function of the roots in a plant?
Answer: To absorb water and nutrients from the soil.

Question: Define an ecosystem.
Answer: An ecosystem is a community of living organisms interacting with their non-living environment.

English

Question: Define a noun.
Answer: A noun is a word that names a person, place, thing, or idea.

Question: What is a synonym for “happy”?
Answer: Joyful.

Question: Write the plural form of “child.”
Answer: Children.

Question: Define a verb.
Answer: A verb is a word that describes an action, state, or occurrence.

Question: What is an antonym for “hot”?
Answer: Cold.

Question: Write a sentence using the word “beautiful.”
Answer: The garden looks beautiful in the spring.

Question: Define an adjective.
Answer: An adjective is a word that describes or modifies a noun.

Question: What is the past tense of “run”?
Answer: Ran.

Question: Identify the subject in the sentence: “The cat is sleeping.”
Answer: The cat.

Question: What is a compound word?
Answer: A compound word is formed when two or more words are combined to create a new word, like “notebook.”

Question: Define a preposition.
Answer: A preposition is a word that shows the relationship between a noun (or pronoun) and other words in a sentence.

Question: What is the opposite of “light”?
Answer: Dark.

Question: Write a synonym for “small.”
Answer: Tiny.

Question: What is a conjunction?
Answer: A conjunction is a word that connects words, phrases, or clauses.

Question: Define an interjection.
Answer: An interjection is a word or phrase that expresses strong emotion, like “Wow!”

Question: What is the superlative form of “good”?
Answer: Best.

Question: Write a sentence using the word “quickly.”
Answer: She quickly finished her homework.

Question: Define a pronoun.
Answer: A pronoun is a word used in place of a noun.

Question: What is the plural form of “mouse”?
Answer: Mice.

Social Studies

Question: Who was the first Prime Minister of India?
Answer: Jawaharlal Nehru.

Question: Name the largest continent.
Answer: Asia.

Question: What is the capital of India?
Answer: New Delhi.

Question: Define democracy.
Answer: Democracy is a form of government in which power is vested in the hands of the people.

Question: Name the river known as the “Ganga of the South.”
Answer: Godavari.

Question: What is the national animal of India?
Answer: Bengal tiger.

Question: When did India gain independence?
Answer: 15th August 1947.

Question: Name the author of “Discovery of India.”
Answer: Jawaharlal Nehru.

Question: What is the Indian national anthem?
Answer: Jana Gana Mana.

Question: Define globalization.
Answer: Globalization is the process of increased interconnectedness and interdependence among countries.

Question: Who wrote the Indian Constitution?
Answer: Dr. B.R. Ambedkar.

Question: Name the state known as the “Land of Five Rivers.”
Answer: Punjab.

Question: What is the significance of 26th January in India?
Answer: Republic Day.

Question: Define a tsunami.
Answer: A tsunami is a series of large ocean waves caused by underwater earthquakes or volcanic eruptions.

Question: What is the main occupation in rural India?
Answer: Agriculture.

Question: Name the longest river in the world.
Answer: Nile.

Question: What is the Tropic of Cancer?
Answer: It is the latitude located at 23.5° North.

Question: Define secularism.
Answer: Secularism means separation of religion from the state and equal respect for all religions.

Question: Name the Indian festival of lights.
Answer: Diwali.

Learning from past question papers is a valuable way to prepare for exams effectively. It helps to identify important topics and understand question patterns. Use these questions and answers to revise and strengthen your knowledge for future academic success.