CHEMISTRY CH10 Matter Around Us — Science STD 9 — Question

State whether true or false. If false, correct the statement.

Plants lose water when the stomata on leaves are closed.

• True

• False

State whether true or false. If false, correct the statement.

Shoot is positively phototropic and negatively geotropic.

• True

• False

A current flowing in a wire gives rise to a magnetic field.

State whether true or false. If false, correct the statement.

Vitamin C is a water soluble vitamin

• True

• False

Reduction of alcohol results in oxidation of dichromate to chromic ion.

A real image is inverted and can be caught on the screen.

Photosynthesis produces glucose and carbon dioxide.

Upthrust = weight of the fluid displaced – apparent weight of the object.

The image formed in a plane mirror is always inverted.

Plants lose water when the stomata on leaves are closed.