Science in daily life

Boiling of egg is a :

• Physical change

• Chemical change

• Both chemical change and physical change

• None of these

What is the working principle of washing machine ?

• Centrifugation

• Centrifugal

• Electromotive force

• None of these

Another name for Vitamin C is :

• Ascorbic acid

• Acetic acid

• Citric acid

• Sulphuric acid

What is the boiling point of water ?

• 60⁰C

• 100⁰C

• 120⁰C

• 173⁰C

Which is called white poison ?

• Sugar

• Potassium

• Acid

• Chlorine

At night...

• The land cools faster than the water in the sea

• The water in the sea cools faster than the land

• The land and water in the sea cools together

• None of these

Which among the following is also known as white gold ?

• Nickel

• Rhodium

• Platinum

• Palladium

A cotton wick dipped in pure honey when ignited with a matchstick will...

• Burn consistently

• Burn with cracking sound

• Does not burn at all

• Burns with too much smoke

Saffron is obtained from which among the following parts of plants ?

• Stigma

• Anther

• Stamen

• Pollen

The asteroid belt is a region of the solar system located roughly between the orbits of which among the following planets ?

• Earth and Mars

• Mars and Jupiter

• Jupiter and Saturn

• Saturn and Pluto