Arihant Expert Team Solutions for Exercise 1: CHAPTER EXERCISE
Arihant Expert Team Science & Pedagogy Solutions for Exercise - Arihant Expert Team Solutions for Exercise 1: CHAPTER EXERCISE
Attempt the free practice questions from Exercise 1: CHAPTER EXERCISE with hints and solutions to strengthen your understanding. Science and Pedagogy CTET and TETs solutions are prepared by Experienced Embibe Experts.
Questions from Arihant Expert Team Solutions for Exercise 1: CHAPTER EXERCISE with Hints & Solutions
Match Column I with Column II and answer using the codes that follow:
| Column I (ACID) | Column II(SOURCE) |
| 1. Citric Acid | P. Ant String |
| 2. Formic Acid | Q. Apple |
| 3. Malic Acid | R. Tamarind |
| 4. Tartaric Acid | S. Lemon |
Codes:
P, Q, R, S
In the following table identify the colours that can suitably replace the alphabets p, q and r mark your response using the codes that follow _____.
| INDICATOR | COLOUR | COLOUR |
| ACIDIC MEDIUM | BASIC MEDIUM | |
| Turmeric | Yellow | p |
| China Rose | q |
Green |
| Methyl Orange | Red | r |
Codes
p, q, r
During a rocket launch, the surface temperature of the rocket increases very high. Which of the following polymers, you think, is suitable for outer covering of the rocket?
Match the Column I and Column II and mark your response using the codes that follow _____.
| Column I (POLYMER) | COLUMN II (USE) |
| A. Buna-S | 1. Rain Coat |
| B. Buna-N | 2. Tires |
| C. PET | 3. Oil seals |
| D. PVC | 4. Water Bottles |
Codes
A, B, C, D
Rekha's mother used to fill the drinking water in glass bottles. But they don't have long lives as they are easily breakable. Her daughter advised her to use polyester products as they have a long life. Which of the following options is suitable for storing drinking water?
Consider the following table of naturally occurring acids:
| SUBSTANCE | ACID |
| A. Grapes | i |
| B. Tomatoes | ii |
| C. iii | Oxalic Acid |
| D. Ant String | iv |
The correct option is (i) (ii) (iii) (iv) _____.
Reena got a tooth decay. It is caused by the acid produced due to the bacterial decomposition of the food particles stuck in teeth. Which of the following steps can neutralize the excess acid?
Materials require grouping. These are grouped on different bases. Which of the following factors require to group a material?
