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प्रश्न
The pencil leads are made of mainly:
(a) lithium
(b) charcoal
(c) lead
(d) graphite
उत्तर
graphite
The pencil leads are mainly made of graphite.
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संबंधित प्रश्न
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| X | 2, 4 |
| Y | 2, 7 |
| Z | 2, 1 |
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Give reasons for your choice.
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C3H8
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A bond formed by a shared pair of electrons, each bonding atom contributing one electron to the pair.
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(isobutylene, cyclohexane, propene, cyclohexene, cyclopentane, benzene, propyne, isobutane, propane)
 |
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