Materials: Metals and Non-Metals [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 7 of 20
Choose Programs:
🎯 465 MCQs (& PYQs) with Full Explanations (2024-2025 Exam)
Rs. 300.00 -OR-
3 Year Validity (Multiple Devices)
CoverageDetailsSample Explanation
Help me Choose & Register (Watch Video) Already Subscribed?
Question 1
Question MCQ▾
Thin wires are made from:
Choices
Choice (4) | Response | |
---|---|---|
a. | Metals | |
b. | Metalloid | |
c. | Non-metals | |
d. | None of the above |
Question 2
Question MCQ▾
Metal used in the formation of antiseptic is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Hydrogen | |
b. | Sulphur | |
c. | Iodine | |
d. | Nitrogen |
Question 3
Question MCQ▾
Food stuffs with acid components should not be stored in the utensils made of metals because:
Choices
Choice (4) | Response | |
---|---|---|
a. | Reaction between food stuff and utensil results into the production of toxic compound | |
b. | Corrosion of metal utensils takes place | |
c. | Acid in the food stuff react with utensil of metal | |
d. | Both a. and c. are correct |
Question 4
Question MCQ▾
Copper reacts with
Choices
Choice (4) | Response | |
---|---|---|
a. | Nitric acid | |
b. | Dilute hydrochloric acid | |
c. | Sulphuric acid | |
d. | Both a. and c. are correct |
Question 5
Question MCQ▾
Which metal react violently with water
Choices
Choice (4) | Response | |
---|---|---|
a. | Copper | |
b. | Silver | |
c. | Sodium | |
d. | Gold |
Question 6
Question MCQ▾
Metals react with acid and produce
Choices
Choice (4) | Response | |
---|---|---|
a. | Nitrogen dioxide | |
b. | Oxygen | |
c. | Hydrogen gas | |
d. | Sulphur dioxide |
Question 7
Question MCQ▾
Phosphorous is stored in water because it is:
Choices
Choice (4) | Response | |
---|---|---|
a. | less reactive to water | |
b. | Do not react with water | |
c. | More reactive to water | |
d. | None of the above |