Science, asked by MagicalCupcake, 8 months ago

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Answered by Anonymous
8

\huge{\mathfrak{Answer}}

1) Metals react with acids to produce Hydrogem gas.

 \implies When metals react with acids, the metal looses electron and then the acid takes the electron.

Example:- Zn + HCl  \</strong><strong>l</strong><strong>o</strong><strong>n</strong><strong>g</strong><strong>r</strong><strong>i</strong><strong>g</strong><strong>h</strong><strong>t</strong><strong>a</strong><strong>r</strong><strong>r</strong><strong>o</strong><strong>w</strong><strong> ZnCl_{2}  + H_{2}

2) Burning of wood and coal cause Pollution of air.

 \implies If substances like wood or coal is burnt they produce air pollution, also coal is chemically complex fuel, so the sulphur in it combine with oxygen resulting in giving sulphur dioxide.

3) Fire produced by oil cannot be controlled by water.

 \implies Water can't out off the fire produced by oil because, water is heavier than oil and so, it settles down and oil floats up, so it can't be controlled by water.

4) All organisms are made of smaller parts called organs.

 \implies All the organisms are made up of organs are they are made up of tissues and they are made up of cell.

Organs are the recognizable part of our body like eyes, nose, heart etc.

5) Green plastids containing chlorophyll are called Chloroplasts.

 \implies The part of a green plant cell that contains chlorophyll and in which photosynthesis takes place

Answered by aarya356
1

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