Atoms and Molecules — Science STD 9 — Question

Find out the wrong statement.

Algae belong to:

1. Thallphytes.
2. Bryophytes.
3. Pteridophytes.
4. All of the above.

The particle used by Rutherford in α-ray scattering experiment was__________?

The boiling point of ethane is, -88°C. This temperature will be equivalent to:

1. 285K
2. 288K
3. 185K
4. 361K

In the lung fishes, the heart is:

1. Single chambered.
2. Two chambered.
3. Three chambered.
4. Four chambered.

Pusa Lerma is an improved variety of:

Hotspots of biodiversity means:

1. Areas of the Earth that contain many endemic species.
2. Species serves as proxy for entire communities in particular areas.
3. Species in particular niche/ area.
4. Species diversity at particular areas.

When a body is fully immersed in a liquid the apparent loss in the weight of body is equal to:

Evaporation of a liquid at room temperature leads to _________ on the liquid surface:

Naked seeds are present in:

1. Pinus.
2. Mango.
3. Mustard.
4. Lemon.