NCERT SOLUTION | MP BOARD Solution 2021 10th, Chapter 2 Acid Base and Salt Based on important questions for the board paper. You can learn all those answer of the questions and you can get the highest marks
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Class 10th Chapter 2Acid Base and Salt.Questions at a glance
Q.01 Differentiate between acid and base. (Any 5)
Q.02 What is a neutralization reaction? Give two examples.
Q.03 Write the chemical properties of acid.
Q.04 Write the name of strong acid and base.
Q.05 Write the method to prepare Bleaching powder, reaction, properties and uses.
Q.06 What is the indicator of Acid and Base? Write its type.
Q.07 Write the note on Baking soda.
Q.08 What is Gypsum? What happen on heating 100^o C?
Q.09 Write a method to prepare Washing soda, its property and uses|
Q.10. Write the name and chemical formula of weak acid and weak base.
Q.11. Write a method to prepare Plaster of Paris
Q.12. What is pH Scale? Write its importance in daily life.
Q.13 Describe the following.
Q.14 What is Crystalline water?
Q.15 What is chlor-alkali process? (MP Question Bank 2020-21)
Q.16 Why does distilled water not conduct electricity, whereas rain water does?
Q.17 Plaster of Paris should be stored in a moisture-proof container. Explain why?
Q.18 Why do acids not show acidic behaviour in the absence of water?
Q.19 While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid?
Q.20 Why should curd and sour substances not be kept in brass and copper vessels?
Q.21 What will happen if a solution of sodium hydrocarbonate is heated? Give the equation of the reaction involved.
Q.22 Why do HCl, HNO3, etc., show acidic characters in aqueous solutions while solutions of compounds like h
Q.23 A milkman adds a very small amount of baking soda to fresh milk.
Q.24. Why does dry HCl gas not change the colour of the dry litmus paper?
Q.25 Write the chemical name and formula of the following-
(a) Bleaching powder (b) Plaster of Paris (c) Washing soda
(d) Baking soda (e) Gypsum (f) slaked lime
Q.26 Write some common acid and its sources
Q.27 What is Buoyancy?
Q.28 What is salt? Give example.
Q.29 Write word equations and then balanced equations for the reaction taking place when -
- dilute sulphuric acid reacts with zinc granules.
- dilute hydrochloric acid reacts with magnesium ribbon.
- dilute sulphuric acid reacts with aluminium powder.
- dilute hydrochloric acid reacts with iron filings.
Q.30 Aqueous solution of sodium chloride is neutral but an aqueous solution of sodium carbonate is basic. Why?
Q.31 How would you distinguish between baking powder and washing soda by heating?
Q.32 Which gas is usually liberated when acid reacts with a metal? Illustrate with an example. How will you test for the presence of this gas?
Q.33 Why does an aqueous solution of an acid conduct electricity?
Q.34 Write two uses of baking soda and washing soda.
Q.35 Metal compound A reacts with dilute hydrochloric acid to produce effervescence. The gas evolved extinguishes a burning candle. Write a balanced chemical equation for the reaction if one of the
Q.36 How is the concentration of hydronium ions (H_3 O^+) affected when a solution of an acid is diluted ?
Q.37 How is the concentration of hydroxide ions (OH^-) affected when excess base is dissolved in a solution of sodium hydroxide ?
Q.38 What effect does the concentration of H^+ ions have on the nature of the solution?
Q.39 Do basic solutions also have H^+ ions? If yes, then why are these basic?
Q.40 Under what soil condition do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?
Q.41 Name the substance which on treatment with chlorine yields bleaching powder?
Q.42 Write an equation to show the reaction between Plaster of Paris and water.
Q.43 Five solutions A, B, C, D and E when tested with universal indicator showed pH as 4, 1, 11, 7 and 9, respectively. Which solution is (a) neutral?
(b) strongly alkaline?
(c) strongly acidic?
(d) weakly acidic?
(e) weakly alkaline? Arrange the pH in increasing order of hydrogen-ion concentration.
Q.44 Fresh milk has a pH of 6. How do you think the pH will change as it turns into curd? Explain your answer.
Q.45 What is Aqua regia?
Q.46 Fill in the blanks:-
i.……………… gas is used in fire extinguisher. {firefighting equipment}
ii.………………is obtain by the reaction of slaked lime and chlorine.
iii.pH value of neutral solution is …………………
iv.Water of ……is the fixed number of water molecules present in one formula unit of a salt
v.For softening hard water the compound of sodium ……………
Q.47 Fill in the blanks;
1. The ………………….acid is present in orange.
2. The substances whose odour changes in acidic or basic media are called as…………
3. In aqueous solution the base gives………………
4. The chemical formula of bleaching powder is ……………
5. The chemical formula of Plaster of Paris of ……..
Fill in the blanks;
1. Metallic oxide are generally .............
2. Non-metallic oxides are generally
3. Water is a............oxide.
4. Acids turn blue litmus to …………
5. Alkalies turn red litmus to................
Q.50 Write the answer in one word or sentence-
i.Turns Blue litmus paper red.
ii.Acid found in Curd.
iii.Alkali according to Lewis
iv.The concentration of H^+ ion in a solution of negative logarithmic is called…
v.The Acid found in Tomato.
Q.51 Choose the correct answer-
1. A solution turns red litmus blue, its pH is likely to be
(a) 1 (b) 4 (c) 5 (d) 10
2.A solution reacts with crushed egg-shells to give a gas that turns lime-water milky. The solution contains
(a) NaCl (b) HCl (c) LiCl (d) KCl
3. 10 mL of a solution of NaOH is found to be completely neutralised by 8 mL of a given solution of HCl. If we take 20 mL of the same solution of NaOH, the amount HCl solution (the same solution as before) required to neutralise it will be
(a) 4 mL (b) 8 mL (c) 12 mL (d) 16 mL
4. Which one of the following types of medicines is used for treating indigestion?
(a) Antibiotic (b) Analgesic (c) Antacid (d) Antiseptic
5.Which acid produces our stomach.
(a)H_2 〖SO〗_4 (b) 〖HNO〗_3 (c) HCl (d) 〖CH〗_3 COOH
6. Due to the formation of which ion in a solution, the substance is acidic in nature.
(a) H^+ (b) 〖Cl〗^- (c) 〖OH〗^- (d) 〖SO〗_3^-
7.Which of the following statements is true for acids?
(a) Bitter and change red litmus to blue (b) Sour and change red litmus to blue
(c) Sour and change blue litmus to red (d) Bitter and change blue litmus to red
8. Common salt besides being used in kitchen can also be used as the raw material for making :
(i) washing soda (ii) bleaching powder
(iii) baking soda (iv) slaked lime
(a) (i) and (ii) (b) (i), (ii) and (iv) (c) (i) and (iii) (d) (i), (iii) and (iv).
9. One of the constituents of baking powder is sodium hydrogen carbonate, the other constituent is :
(a) hydrochloric acid (b) tartaric acid (c) acetic acid (d) sulphuric acid.
10. To protect tooth decay we are advised to brush our teeth regularly. The nature of the tooth paste commonly used is:
(a) acidic (b) neutral (c) basic (d) corrosive.
11. The pH of the gastric juices released during digestion is:
(a) less than 7 (b) more than 7 (c) equal to 7 (d) equal to 0.
12. Which of the following is acidic in nature?
(a) Lime juice (b) Human blood (c) Lime water (d) Anatcid.
13. Which of the following is used for dissolution of gold?
(a) Hydrochloric acid (b) Sulphuric acid (c) Nitric acid(d) Aqua regia.
14. Which of the following is not a mineral acid ?
(a) Hydrochloric acid (b) Citric acid(c) Sulphuric acid (d) Nitric acid.
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NCERT | MP BOARD Class 10th Science
Ch 04 Carbon and its Compounds
Ch 05 Periodic Classification of Elements
Ch 06 Life Processes
Ch 07 Control and Coordination
Ch 08 How do Organisms Reproduce
Ch 09 Heredity and Evolution
Ch 10 Light – Reflection and Refraction
Ch 11 Human Eye and Colourful World
Ch 12 Electricity
Ch 13 Magnetic Effects of Electric Current
Ch 14 Sources of Energy
Ch 15 Our Environment
Ch 16 Management of Natural Resources
