Questions

When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen.

The air enters our body through the nose. However, before it enters the lungs, it must be heated and purified. Many dust particles that enter along with the air are removed in the nose by mucus and thus it protects lungs.

One atomic mass unit (AMU) is equal to the one-twelfth the mass of one carbon-12 atom.

Fragmentation occurs in a dynamic memory allocation system when many of the free blocks are too small to satisfy any request.

Humming bird is the smallest bird and the only bird which can fly in backwards in the world.

You can divide the frequency of a clock by just implementing T Flip flop.

Give clock as clock input and tie the T input to logic 1.

Sodium hydroxide, also known as lye and caustic soda, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na+ and hydroxide anions OH−.

Properties:

1. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air.

2. NaOH is insoluble in ether and other non-polar solvents.

3. It is an odorless compound.

Uses:

Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner.