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Earn 100

Which metal is found in chlorophyll?

50% studentsanswered this correctly

Important Questions on Minerals and Metals

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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals

Give reasons.

(i) Platinum, gold and silver are used to make jewellery.

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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Which colour is given by cobalt oxides to glass?
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals

Give reasons:

 Platinum, gold and silver are used to make jewellery. 

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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
A nonmetal used to purify water is _____
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ is used as lubricant, in making pencil tips, dry cells and electrodes.
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Liquid _____ is used to preserve donated organs. (hydrogen/ nitrogen)
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Name the part of the uniform where your school motto is written on a metal sheet _____. (tie / badge)
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
A chemical compound that makes up the striking heads of match sticks is _____
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Liquid _____ is used to preserve donated organs. (nitrogen/ oxygen)
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ foils are used to wrap food items. 
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Nitrates of _____ find use in photography. 
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Hydrogen is used in the preparation of _____ flame.
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ is used for filling an electrical bulb. (Oxygen/ Nitrogen)
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
A metal that gives dazzling effect to crackers when they explode is _____
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ are homogeneous mixture of metals or combination of metals and non-metals.
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Fill in the blanks with the correct option from the box:
_____ is used in making electrodes in dry cells.
Reactive Kerosene Sonorous Mercury Hydrogen
Copper Graphite NaAlO2 + H2 No displacement reaction Chromium
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
A solution of _____ in alcohol has antiseptic properties. 
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
Nitrates of _____ find use in photography. (aluminium/ silver)
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ is the name of the metal used to make parts of aeroplanes and spacecrafts.
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Science>Chemistry>Minerals and Metals>Uses of Metals and Non-metals
_____ are used in making jewellery. (Reactive metals/Precious metals)