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सी.आई.एस.सी.ई.आईसीएसई ICSE Class 7

Fill in the Blank : the Most Ductile Metal Is ....................

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प्रश्न

Give two uses of Germanium  

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उत्तर

  • Germanium is used as a semiconductor.
  • It is used as a transistor in many electronic applications when mixed with arsenic, gallium, antiomony, etc.
  • Germanium is also used to form alloys and as a phosphor in fluorescent lamps
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अध्याय 6: Metals and Non-metals - Exercise

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एस पी सिंग Concise Chemistry [English] Class 7 ICSE
अध्याय 6 Metals and Non-metals
Exercise | Q 8.4

संबंधित प्रश्न

Which property of graphite is utilised in making electrodes?


State one use of the following metal:

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What is an alloy?


Mention two uses of the following metals and non-metals  

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Mention two uses of the following metals and non-metals 

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State two important uses of following metal: 

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State two important uses of the following metal. 

Uses of magnesium  


Which is the non-ionic compound in the compounds given below.
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A white crystalline solid which decrepitates on heating leaving a residue which fuses with the glass and evolves two gases one of which is coloured and acidic.


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Complete the following flow chart.


______ is the first scientist who used the term element.


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Which metals are not solid at room temperature?


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