NCERT SOLUTION | MP BOARD Solution 2020 for Class 9th, 10th, 11th, 12th Based on Useful questions for board paper. You can learn all those answers to the questions and you can get highest marks
मध्यप्रदेश बोर्ड के प्रश्न पत्र पर आधारित प्रश्न और उत्तर
मध्यप्रदेश बोर्ड के प्रश्न पत्र पर आधारित प्रश्न और उत्तर
NCERT | MP BOARD Class 10th Science
Chapter 4 Carbon and its Compounds
Chapter 5 Periodic Classification of Elements
Chapter 7 Control and Coordination
Chapter 8 How do Organisms Reproduce
Chapter 9 Heredity and Evolution
Chapter 10 Light – Reflection and Refraction
Chapter 11 Human Eye and Colourful World
Chapter 12 Electricity
Chapter 13 Magnetic Effects of Electric Current
Chapter 14 Sources of Energy
Chapter 15 Our Environment
Chapter 16 Management of Natural Resources
Exercise question
Note Answer available below;Q.1 Write the definition of the following.
Reactant, product, element, Compound
Q.2 Why should a magnesium ribbon be cleaned before burning in air?
Q.3 A solution of a substance ‘X’ is used for white washing.
(i) Name the substance ‘X’ and write its formula.
(ii) Write the reaction of the substance ‘X’ named in (i) above with water.
Q.4 A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
Q.5 Explain on daily basis.
(a) Corrosion and its measures to prevention.
(b) Explain Rancidity
Q.6 Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
Q.7 What is photochemical reaction? Write an example
Q.8 Differentiate between decomposition and composition reaction.
Q.9 Write the factors affecting the rate of chemical reaction.
Q.10 Which of the statements about the reaction below are incorrect?
i. Lead is getting reduced.
ii. Carbon dioxide is getting oxidized.
iii. Carbon is getting oxidized.
iv. Lead oxidized is getting reduced.
Q.11 Differentiate between displacement and double displacement.
OR
What is displacement reaction? Give an example.
OR
What is double displacement reaction? Give an example
Q.12 Why is respiration considered an exothermic reaction? Explain.
Q.13 Differentiate between Endothermic and exothermic.
Q.14 What do you mean by a precipitation reaction? Explain by giving examples.
Q.15. What is oxidation reaction? Explain with example.
Q.16 What is a balanced chemical equation? Why should chemical equations be balanced?
Q.17 What is the importance of Balanced chemical reaction?
Q.18 In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
Q.20 Why do we apply paint on iron articles?
Q.21 Write the balanced chemical equation for the following and identify the type of reaction in each case.
(a)Potassium bromide (aq) + Barium iodide (aq) → Potassium iodide (aq) + Barium bromide(s)
(b) Zinc carbonate (s) → Zinc oxide (s) + Carbon dioxide (g)
(c) Hydrogen (g) + Chlorine (g) → Hydrogen chloride (g)
(d) Magnesium (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)
Q.22 Balance the following chemical equations.
Q.23 Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Q.24 Translate the following statements into chemical equations and then balance them.
(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Q.25. Identify the substance that are oxidized and the substance that are reduced in the following reaction;
Q.26 Oil and fat containing food items are flushed with nitrogen, Why?
Q.27 Write a balance chemical equation with state symbols for the following reactions;
Q.28. Write the balanced chemical equations for the following reactions :
Q.29 Define corrosion and write two ways to prevent the corrosion.
Q.30 Differentiate between oxidation and reduction.
Reactant, product, element, Compound
Q.2 Why should a magnesium ribbon be cleaned before burning in air?
Q.3 A solution of a substance ‘X’ is used for white washing.
(i) Name the substance ‘X’ and write its formula.
(ii) Write the reaction of the substance ‘X’ named in (i) above with water.
Q.4 A shiny brown-coloured element ‘X’ on heating in air becomes black in colour. Name the element ‘X’ and the black coloured compound formed.
Q.5 Explain on daily basis.
(a) Corrosion and its measures to prevention.
(b) Explain Rancidity
Q.6 Write one equation each for decomposition reactions where energy is supplied in the form of heat, light or electricity.
Q.7 What is photochemical reaction? Write an example
Q.8 Differentiate between decomposition and composition reaction.
Q.9 Write the factors affecting the rate of chemical reaction.
Q.10 Which of the statements about the reaction below are incorrect?
i. Lead is getting reduced.
ii. Carbon dioxide is getting oxidized.
iii. Carbon is getting oxidized.
iv. Lead oxidized is getting reduced.
Q.11 Differentiate between displacement and double displacement.
OR
What is displacement reaction? Give an example.
OR
What is double displacement reaction? Give an example
Q.12 Why is respiration considered an exothermic reaction? Explain.
Q.13 Differentiate between Endothermic and exothermic.
Q.14 What do you mean by a precipitation reaction? Explain by giving examples.
Q.15. What is oxidation reaction? Explain with example.
Q.16 What is a balanced chemical equation? Why should chemical equations be balanced?
Q.17 What is the importance of Balanced chemical reaction?
Q.18 In the refining of silver, the recovery of silver from silver nitrate solution involved displacement by copper metal. Write down the reaction involved.
Q.20 Why do we apply paint on iron articles?
Q.21 Write the balanced chemical equation for the following and identify the type of reaction in each case.
(a)Potassium bromide (aq) + Barium iodide (aq) → Potassium iodide (aq) + Barium bromide(s)
(b) Zinc carbonate (s) → Zinc oxide (s) + Carbon dioxide (g)
(c) Hydrogen (g) + Chlorine (g) → Hydrogen chloride (g)
(d) Magnesium (s) + Hydrochloric acid (aq) → Magnesium chloride (aq) + Hydrogen (g)
Q.22 Balance the following chemical equations.
Q.23 Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Q.24 Translate the following statements into chemical equations and then balance them.
(a) Hydrogen gas combines with nitrogen to form ammonia.
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
Q.25. Identify the substance that are oxidized and the substance that are reduced in the following reaction;
Q.26 Oil and fat containing food items are flushed with nitrogen, Why?
Q.27 Write a balance chemical equation with state symbols for the following reactions;
Q.28. Write the balanced chemical equations for the following reactions :
Q.29 Define corrosion and write two ways to prevent the corrosion.
Q.30 Differentiate between oxidation and reduction.
अभ्यास प्रश्न्नोतर
