Is Matter Around Us Pure ? — Science STD 9 — Question

A body is thrown vertically upward with velocity u, the greatest height h to which it will rise is,

Inertia of a body has direct dependence on:

How is scrap-iron separated from other wastes in a scrap yard:

Membrane which allows passage of only solvent through it is:

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

Water stored in a dam possesses:

1. No energy.
2. Electrical energy.
3. Kinetic energy.
4. Potential energy.

When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after sometime, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour. Which of the following conclusion obtained from these observations is incorrect?

Water will be absorbed by the root hair because:

The codes for the specific proteins produced by a cell lies in the ________.

Name the cell organelle which is called the Control room of the cell.