Question

Name the following: 2

1. Homogeneous mixture

2. Chemical substance that gives green colour to leaves Q. 4. A. Answer the following (Any 3) 9

1. What were the conclusions drawn from the scattering experiment performed

by Rutherford (Write any three).

2. Write the any three functions of Golgi Complex.

3. Write one merit and two demerits of dry cell​

Answer 1

Answer:

1) There is only one phase of matter observed in a homogeneous mixture.

There is only one phase of matter observed in a homogeneous mixture.air.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.rain water.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.rain water.vodka.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.rain water.vodka.vinegar.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.rain water.vodka.vinegar.dishwashing detergent.

There is only one phase of matter observed in a homogeneous mixture.air.sugar water.rain water.vodka.vinegar.dishwashing detergent.steel.

2)Green plants have the ability to make their own food. They do this through a process called photosynthesis, which uses a green pigment called chlorophyll.

q-4

2) 1. modifying, sorting and packaging of proteins for secretion. 2.It produces vacuoles or secretary vesicles which contains cellular secretions like enzymes,protiens etc. 3.It is also involved in synthesis of cell wall,plasma membrane and lysosomes.

1) 1. The compact size of a dry cell makes it suitable for powering small electronic devices. 2. The electrolyte used in dry cell is relatively not so harmful to the environment.

Answer 2

Explanation:

1.A mixture with uniform composition is known as homogeneous mixture.

2.Cholrophyll

3. Rutherford conclusion were:

i)An atom is surrounded by negatively charged particles known as electrons.

ii) Every atom has a neclus inside it.

iii) Also from his experiment he found that some of the Ray's were reflected which later as protons.

i)Modifying, sorting and packaging of proteins for secretion.

ii).It produces vacuoles or secretary vesicles which contains cellular secretions like enzymes,protiens etc. ii).It is also involved in synthesis of cell wall,plasma membrane and lysosomes.

3.Merit – Used to run many DC devices.

Demerits–i)Very poisonous

ii) Very harmful small age childrens.