हिंदी

Which of the following about oxides is correct?

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प्रश्न

Which of the following about oxides is correct?

विकल्प

  • A basic oxide is an oxide of a non-metal

  • Acidic oxides contain ionic bonds

  • Amphoteric oxides contain a metal

  • Basic oxides are always gases

MCQ
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उत्तर

Amphoteric oxides contain a metal

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Action of Alkalis on Metal Oxides
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2024-2025 (March) Specimen Paper

संबंधित प्रश्न

State your observation when excess sodium hydroxide is added to calcium nitrate solution


Name a solution that will separate the component of the following mixture: CaO from PbO


How will the action of dilute hydrochloric acid on sodium carbonate and sodium sulphite enables you to distinguish between these two compounds?


Give one chemical test to distinguish between the following pair of compounds:

Zinc sulphate solution and Zinc chloride solution


A given white crystalline salt was tested as follows:

A flame test on the salt gave a persistent golden-yellow colourisation. What conclusions can be drawn for the observation?


When an ammonium salt is warmed with sodium hydroxide solution, a gas is evolved. State three ways in which you could identify this gas.


The questions (i) to (v) refer to the following salt solutions listed A to F.

           A.Copper Nitrate

           B.Iron (II) Sulphate

           C.Iron (III) chloride

           D.Lead Nitrate

           E.Magnesium sulphate

          F.Zinc chloride

(I)Which two solutions will give a white precipitate when treated with dilute hydrochloric acid followed by a barium chloride solution?

(II)Which two solutions will give a white precipitate when treated with dilute nitric acid followed by silver nitrate solution?

(III)Which solution will give white precipitate, when either dilute hydrochloric acid or dilute sulphuric acid is added to it?

(IV)Which solution becomes a deep/inky blue colour when the excess of ammonium hydroxide is added to it?

(V)Which solution gives a white precipitate with an excess of ammonium hydroxide solution?


Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


Write balanced equation for a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.


Write balanced equation for a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.


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