Fundamental Laws and Discoveries in Chemistry

______ is a process in which impure water is boiled, and the steam is collected and condensed in a separate container, leaving many of the solid contaminants behind.

Which of the following pigments causes the red colour in onions?

Which chemical reaction takes place during the cooking of meat?

Due to which of the following reactions are household bleaching agents using phosphorous, sulphur and chlorine formed?

What is the state of matter formed by cooling a gas of extremely low density to Super low temperatures?

Which of the following is not an allotrope of carbon?

Which gas is produced when metal reacts with dilute acids?

Which among the following is NOT a characteristic of Physisorption? 

Which among the following elements has the lowest electronegativity?

At which temperature are Fahrenheit and Celsius equal?

Which of the following ions are responsible for the hardness of water?

The process of melting that changes solid state into a liquid state is also known as?

Sub atomic particles of atoms are ______.

If there is a black coating on silver and the green coating on copper, then these are examples of ____________.

Aluminium is obtained by the electrolysis of pure $A{l}_2{O}_3$ dissolved in

Glucose is a type of:

Match the following.
A.Copper sulphate     1. Fertiliser
B.Penicillin                2. Insecticide
C.Urea                      3. Fungicide
D.Malathion               4. Antibiotic
 

Water and ice crystals are in equilibrium at $0°\mathrm{C}$. When pressure is applied to this system

The unit of rate of reaction is-

Which metal does not react with dilute $H_{2}S{O}_4 ?$