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English 22 Public

element

Study Slideshow

Iron is used in making………………and……………….…

bridge - door

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-Electric wires are made up of……………. a-sulphur b-carbon c-copper

copper

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1-Silver has metallic luster so, it is…………….., while sulphur hasn't metallic luster so, it is……………

metal ,,,non-metal

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Cooking pots are made of…………..

aluminium

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-A non-metal that is used in making the positive pole of the dry cell. (………………………….)

graphite

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5-Positive poles of dry cell are made of carbon. ( )

yes

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Give reason:- 1-Sulphur is a non metal element

Because it has low melting point ,,bad conductor of heat ands electricicty

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Jewellery is made of…………

gold

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. ...................... is a liquid metal, while ………...........…… is a liquid non-meta

mercury ---- bromine

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Metals are good conductors of .............. and ..................

electricity ---heat

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Elements which can be bent, hammered, and are good conductors of heat and electricity

metals

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Elements that have low melting point. (…………………………..)

non metal

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1. ...................... is an example of non-metals. a. Copper b. Carbon c. Aluminium d. Iron

carbon

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. All the following elements are good conductors of electricity except ………… a. Carbon b. Iron c. Sulphur d. Copper

sulphur

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Sulphur is a non-metal element. give reason

Because it has no luster and bad conductor of electricity.

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Carbon (graphite) is used in making positive poles of dry cells. GR

Because it is good conductor of electricity.

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