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

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Subjects
Science State Board
Class 10
Atoms and Molecules
Textbook questions

1. Choose the best answer I

Exercise condition:

5 m.

1. Which of the following has the smallest mass?

$6.023\times10^{23}$ atoms of $He$
$1$ atom of $He$
$2$ $g$ of $He$
$1$ $mole$ atoms of $He$

2. Which of the following is a triatomic molecule?

Hydrogen
Carbon dixode
Helium
Glucose

3. The volume occupied by

$4.4$

$g$ of

$CO_2$ at STP

$2.24$ $litre$
$22.4$ $litre$
$0.24$ $litre$
$0.1$ $litre$

4. Mass of

$1$

$mole$ of nitrogen atom is

$14$ $amu$
$14$ $g$
$28$ $amu$
$28$ $g$

5. Which of the following represents

$1$

$amu$ ?

Mass of a $C –12$ atom
$1/12$ th of the mass of a $C –12$ atom
Mass of $O –16$ atom
Mass of a hydrogen atom

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