R R Misra Solutions for Chapter: Is Matter Around Us Pure? (Elements, Compounds and Mixtures), Exercise 7: Questions on Higher Order Thinking Skills (HOTS)

Author:R R Misra

R R Misra Chemistry Solutions for Exercise - R R Misra Solutions for Chapter: Is Matter Around Us Pure? (Elements, Compounds and Mixtures), Exercise 7: Questions on Higher Order Thinking Skills (HOTS)

Attempt the free practice questions on Chapter 2: Is Matter Around Us Pure? (Elements, Compounds and Mixtures), Exercise 7: Questions on Higher Order Thinking Skills (HOTS) with hints and solutions to strengthen your understanding. Secondary Chemistry solutions are prepared by Experienced Embibe Experts.

Questions from R R Misra Solutions for Chapter: Is Matter Around Us Pure? (Elements, Compounds and Mixtures), Exercise 7: Questions on Higher Order Thinking Skills (HOTS) with Hints & Solutions

EASY
9th CBSE
IMPORTANT

Oxygen is an element with non-metallic nature. What is its molecular formula?

HARD
9th CBSE
IMPORTANT

Name the method of separation of small pieces of metal in engine oil.

MEDIUM
9th CBSE
IMPORTANT

Write one point of difference between evaporation and sublimation. 

HARD
9th CBSE
IMPORTANT

Solubility of a gas in water decreases on heating. Is the dissolution of gas in water exothermic or endothermic? 

HARD
9th CBSE
IMPORTANT

Solubility of a salt in water at 273 K is lower than that at 300 K. Is the process of solubility exothermic or endothermic? 

MEDIUM
9th CBSE
IMPORTANT

A system shows Tyndall effect and Brownian motion. Does this system represent a true solution or colloid? 

HARD
9th CBSE
IMPORTANT

Arrange true solution, suspension and colloid in the increasing order of their particle sizes.