मराठी

Metal a Burns in Air, on Heating, to Form an Oxide A2o3 Whereas Another Metal B Burns in Air Only on Strong Heating to Form an Oxide Bo. the Two Oxides A2o3 and Bo Can React with Hydrochloric Acid as Well as Sodium Hydroxide Solution to Form the Corresponding Salts and Water. (A) What is the Nature of Oxide A2o3? (B) What is the Nature of Oxide Bo? (C) Name One Metal like A. (B) Name One Metal like B. - Science

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प्रश्न

Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.

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उत्तर

(a) The oxide A2O3 is amphoteric, which can react with both acids and bases to form salt and water.

(b) The oxide BO is amphoteric, which can react with both acids and bases to form salt and water.

(c) Aluminium is a metal like A, which forms Al2O3 on reacting with oxygen.

(d) Zinc is a metal like B which forms ZnO on strongly heating in air (oxygen).

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३६]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 3 Metals and Non-metals
Exercise 1 | Q 90 | पृष्ठ १३६

संबंधित प्रश्‍न

A student added few pieces of aluminium metal to two test tubes A and B containing aqueous solutions of iron sulphate and copper sulphate. In the second part of her experiment, she added iron metal to another test tubes C and D containing aqueous solutions of aluminium sulphate and copper sulphate.

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How would you show that silver is chemically less reactive than copper?


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Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.


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How do non-metals react with hydrogen? Explain with an example.


Describe the reaction of potassium with water. Write the equation of the reaction involved.


Give one example, with equation, of the displacement of hydrogen by a metal from an acid.


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Write the chemical equation of the above process.


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