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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Multiple Choice Questions a Metal Which is Neither Ductile Nor Malleable is (A) Copper (B) Silver (C) Zinc (D) Aluminium - Chemistry

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प्रश्न

A metal which is neither ductile nor malleable is

विकल्प

  • Copper

  • Silver

  • Zinc

  • Aluminium

MCQ

उत्तर

Zinc

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अध्याय 6: Metals and Non-metals - Multiple choice questions

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सेलिना Concise Chemistry [English] Class 7 ICSE
अध्याय 6 Metals and Non-metals
Multiple choice questions | Q 3

संबंधित प्रश्न

Write the name and formulae of  a metal hydride.


Fill in the following blanks with suitable words:

A metal having low melting point is ..................... but a non-metal having very high melting point is ..............


State five uses of metals


Name one ore of manganese. Which compound of manganese is present in this ore? Also write its chemical formula.


Mention two uses of the following metals and non-metals 

Oxygen


Give reasons 

Magnesium is used in fire works. 


Write ‘True’ or ‘False’ in front of following statement. 

Magnesium is used in making light weight alloys of aluminium. 


Take an element from an alkali metal and one from an alkaline earth metal and write an equation for their action with:

Sulphuric acid


Give a reason why iron objects rust easily but the iron pillar at Qutab Minar has not rusted over the years.


State a specific reason for using copper in electrical cables


The minerals from which the metal can be separated economically are called _______.


Write the name.

Two highly reactive metals-


Give reasons for the following.

  1. Aluminum foils are used to wrap food items.
  2. Immersion rods for heating liquids are made up of metallic substances.
  3. Sodium and potassium are stored in kerosene.
  4. Mercury is used in thermometers.

A is a reddish-brown metal, which combines with O2 at < 1370 K gives B, a black coloured compound. At a temperature > 1370 K, A gives C which is red in colour. Find A, B, and C with reaction.


Generally, metals are solid in nature. Which one of the following metals is found in a liquid state at room temperature?


In the given figure, you find that the bulb glows when an iron nail is placed between two ends of wire. Complete the following sentences on the basis of this fact.

  1. ______  is a metal.
  2. Metals are good ______ of electricity. 

A doctor prescribed a tablet to a patient suffering from iron deficiency. The tablet does not look like iron. Explain.


Why do metals appear shiny?


Which metals are not solid at room temperature?


Which metals are liquid at room temperature?


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