Formulae of chemical compounds — task. Science CBSE, Class 9.

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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Find out the correct answers:

1. Aluminium chloride

$Al {Cl}_{3}$
${Al}_{2} {Cl}_{3}$
$Al {Cl}_{2}$
$Al {Cl}_{4}$

2. Ravi's teacher asked him to write a chemical formula for ammonium hydroxide on the board, and he wrote it correctly as _________.

$NH {(OH)}_{2}$
${NH}_{4} OH$
${NH}_{2} (OH)$
$NH (OH)$

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