PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>Formative Assessment>Q (i)

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At room temperature, most metals are:

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Important Questions on Metals and Non-metals

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>Formative Assessment>Q (ii)

Which of the following metals does not displace $H_{2}$ gas from dilute $HCl$ or dilute $H_{2} {SO}_{4}$ ?

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>Formative Assessment>Q (ii)

Which of the following metals is extracted only by electrolysis?

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 26

Which of the following is the best electrical conductor?

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 28

In general the number of electrons in the outermost shell of a metal atom is

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 30

In electrolytic reduction of aluminium, alumina is mixed with

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 32

Sulphide ore is concentrated by

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 33

The elements which has

1, 2 or 3

valence electrons formed _____.

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PRACHI SCIENCE CHEMISTRY CLASS-X>Chapter 3 - Metals and Non-metals>SUMMATIVE ASSESSMENT MOCK TEST>Q 34

Haematite is an ore of