Author: Cbse concept

General knowledge question for class 10

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Check your knowledgeđź“š

Q 1. Which is the biggest continent in the world?

  1. North America
  2. Asia
  3. Africa
  4. Australia

Q 2. Which is longest river in the world?

  1. Great Ganga
  2. Nile
  3. Amazon
  4. Niger

Q 3. Which is the largest ocean in the world?

  1. Indian Ocean
  2. Pacific Ocean
  3. Arctic Ocean
  4. Atlantic Ocean

Q 4.  Which is India’s first super computer?

  1. Param8000
  2. param80000
  3. param800
  4. param8

Q 5.  Which bank is called bankers bank of India?

  1. Reserve Bank of India
  2. Punjab National Bank
  3. State Bank of India
  4. ICICI Bank

Q 6.  Which is largest animal in the world?

  1. Sharke
  2. Blue whale
  3. Elephant
  4. Giraffe

Q 7.  Which is largest animal on land?

  1. Tiger
  2. White Elephant
  3. African Elephant
  4. Crocodile

Q 8. Which is largest island in the world?

  1. New Guinea
  2. Andaman Nicobar
  3. Greenland
  4. Hawaii

Q 9. Which is largest flower in the world?

  1. Rafflesia
  2. Jasmine
  3. Balloon Flower
  4. Camellia

Q 10. Which is the 29th state of India?

  1. Uttarakhand
  2. Telangana
  3. Uttar Pradesh
  4. Madhya Pradesh

Q 11.  Tsunami is a word in which language?

  1. Hindi
  2. Urdu
  3. Japanese
  4. French

Q 12.  Which state has the longest coastal line in India?

  1. Gujarat
  2. Kerala
  3. Karnataka
  4. West Bengal

Q 13. Which continent is known as Dark Continent?

  1. Asia
  2. South America
  3. Australia
  4. Africa

Q 14. On which river the Uri dam is constructed?

  1. Beas
  2. Jhalam
  3. Sutlej
  4. Ganga

Q 15. Which is the smallest country in the world?

  1. Vatican City
  2. Bhutan
  3. Nepal
  4. Shri Lanka

Oxidation-Reduction Reactions

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oxidation-reduction reaction, also called redox reaction, any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation-reduction reactions are as common and familiar as fire, the rusting and dissolution of metals, the browning of fruit, and respiration and photosynthesis—basic life functions.

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Question 3Write a balanced chemical equation with state symbols for the following reactions :(i) Solutions of barium chloride and sodium sulphate in water react to give insoluble barium sulphate and the solution of sodium chloride.(ii) Sodium hydroxide solution (in water) reacts with hydrochloric acid solution (in water) to produce sodium chloride solution and water.

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Answer:
(i) BaCl2 (aq) + Na2SO4 (aq) → BaSO4(s) + 2NaCl (aq)
(ii) NaOH (aq) + HCl(aq) → NaCl(aq) + H2O(l)

Team:- CBSECONCEPT

Question 2Write the balanced equation for the following chemical reactions.(i) Hydrogen + Chlorine → Hydrogen chloride(ii) Barium chloride + Aluminium sulphate → Barium sulphate + Aluminium chloride(iii) Sodium + Water → Sodium hydroxide + Hydrogen

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Answer:
(i) H2 + Cl2 â†’ 2HCl
(ii) 3 BaCl2 + Al2(SO4)3 â†’ BaSO4 + 2 AlCl3
(iii) 2Na + 2H2O → 2NaOH + H2↑

Team:-CBSECONCEPTS