Question

Q.2 Fill in the blanks:-
1.1 mole =
particles.
2. Atomicity of CoHo is
3. Formula mass unit of ZnO is
4. Discovery of neutron was done by
5. Oxygen atom is having
valency.
6.
is an eg of non-locomotive animal.
7. Bryophyta means
plants.
8. Crops which are grown in winter are called
9. Continous use of fertilizers in an area can
10.
micro nutrients are required by plants.
​

Answer 1

Answer:

1.) 6.022 × 10²³

3.) Formula unit mass of ZnO is

=1×atomic mass of Zn+1×atomic mass of O

=1×65+1×16

=81u.

4.) James Chadwick

5.) 2

7.) Bryophytes are an informal group consisting of three divisions of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses. ... The bryophytes consist of about 20,000 plant species. Bryophytes produce enclosed reproductive structures (gametangia and sporangia), but they do not produce flowers or seeds.

8.) Rabi Crops

9.) destroy soil fertility

10.)

Answer 2

drop some thanks and follow i also will do