NCERT Class 8 Science-Materials: Metals and Non-Metals[Chemical Properties of Metals & Non-Metals] [NCERT Based General Studies (GS)]: Questions 1 - 7 of 10
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Question 1
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 2
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 3
Question MCQ▾
Which metal react violently with water
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Copper | |
b. | Silver | |
c. | Sodium | |
d. | Gold | |
Question 4
Question MCQ▾
Metals react with acid and produce
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Nitrogen dioxide | |
b. | Oxygen | |
c. | Hydrogen gas | |
d. | Sulphur dioxide | |
Question 5
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 | |
Question 6
Question MCQ▾
Metals when combine with oxygen forms oxides which are
Choices
| Choice (4) | Response | |
|---|---|---|
a. | basic in nature | |
b. | acidic in nature | |
c. | Neutral in nature | |
d. | None of the above | |
Question 7
Question MCQ▾
Displacement reaction is:
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Property of element in which a more reactive element displaces less reactive element from its compound in aqueous solution | |
b. | Synthetic fibre which is used in place of wool | |
c. | Displacement of one metal with another metal | |
d. | Reaction in which more reactive metal displaces a less reactive metal from its salt solution. | |