'Milk of magnesia' is an example of:

Important Questions on Atomic Structure; Physical and Chemical Properties of Matter

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 4

A mixture of sand and iodine can be separated by-

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 5

A mixture of Potassium Nitrate and iodine can be separated by-

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 6

Crystal structure of sodium chloride is-

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 7

Which of the following is the Glauber's salt?

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 8

Which of the following is an efflorescent substance?

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 9

Whose solubility decreases with rise of temperature?

MEDIUM

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 10

Which of the following is not a deliquescent substance?

EASY

9th West Bengal Board

IMPORTANT

PHYSICAL SCIENCE & ENVIRONMENT CLASS 9>Chapter 4 - Atomic Structure; Physical and Chemical Properties of Matter>EXERCISE>Q 11

The radii of particles of true solution ${\mathrm{r}}_1$ colloidal solution ${\mathrm{r}}_2$ and suspension ${\mathrm{r}}_3$. The decreasing order of their radii is-