Question

Match the column:-

A B

a. James Chadwick 1.HCO3

-

b. Alpha particles 2. Remains constant

c. Bicarbonate 3. Cr2O7

2-

d. Mass in a chemical reaction 4. Discovery of neutron

e. Dichromate 5. Radium​

Answer 1

Answer:

The answers are matched below

a-4

b-5

c-1

d-2

e-3

Hope it helped

Answer 2

Answer:

a-4

b-5

c-1

d-2

e-3

ONE SECRET :

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