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Chemistry

1)

There are about.............. periods in periodic table.

  • A)

  • B)

  • C)

  • D)

The number of group and periods are not equal.

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The bond which is formed by mutual sharing of electrons, is called as;
The reaction in which acid and base reacts together, is called as;
The horizontal lines in periodic table are called as;
In Chemistry there are basically .............. types of bond.
The compound that end in 'ol' like ethanol, methanol, etc are ..............in nature.