Name a non-metal having a very high melting point.

Academic Chemistry NCERT Class 10

Diamond is a non-metal having a high melting point.

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Updated on: 10-Oct-2022

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Name a non-metal which is very hard.
Name one metal which has a low melting point.
Name one metal and one non-metal that exist in a liquid state at room temperature. Also, name two metals having a melting point less than 310 K (37°C).
Phosphorous is a very __________ non-metal.
Fill in the following blanks with suitable words:(a) Magnesium liberates ________ gas on reacting with hot boiling water.(b) The white powder formed when magnesium ribbon burns in oxygen is of ________.(c) Ordinary aluminium stripes are not attacked by water because of the presence of a layer of ________ on the surface of aluminium.(d) A metal having low melting point is ________ but a non-metal having very high melting point is ________.(e) Calcium is a ________ reactive metal than sodium.
Why the filament of the bulb has a high melting point?
Name a non-metal that has lustre.
Name a metal which is soft and a non-metal which is hard.
Non-metals are usually poor conductors of heat and electricity. They are non-lustrous, non-sonorous, non-malleable and are colored.(a) Name a lustrous non-metal.(b) Name a non-metal which exists as a liquid at room temperature.(c) The allotropic form of a non-metal is a good conductor of electricity. Name the allotrope.(d) Name a non-metal which is known to form the largest number of compounds.(e) Name a non-metal other than carbon which shows allotropy.(f) Name a non-metal which is required for combustion.
The ultrasound waves can penetrate into matter to a large extent because they have:(a) very high speed (b) very high frequency(c) very high wavelength(d) very high amplitude
Name a non-metal which is a good conductor of electricity.
Define 'melting point' of a substance? What is the melting point of ice?
Name some non-metal that exist in a gaseous state?
Name a non-metal which is good conductor of electricity?
(a) Define non-metals. Give five examples of non-metals.(b) Name a non-metal which conducts electricity. (c) Name a non-metal having lustre (shining surface). (d) Name a non-metal which is extremely hard. (e) How do non-metals react with oxygen? Explain with an example. Give equation of the reaction involved. What is the nature of the product formed ? How will you demonstrate it?

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