S-Block Elements Group 1 and 2-Industrial Uses (NEET Chemistry): Questions 1 - 7 of 7
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Question number: 1
» S-Block Elements Group 1 and 2 » Industrial Uses » Cement
Question
The cement used in dental fillings is called?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Sorel cement |
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| b. | Hard cement |
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| c. | Magnesia alva |
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| d. | Quick lime |
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Question number: 2
» S-Block Elements Group 1 and 2 » Industrial Uses » Plaster of Paris
Question
Addition of alum to plaster of Paris makes the setting very hard. The mixture is known as?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Dead plaster |
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| b. | Chalk |
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| c. | Burnt plaster |
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| d. | Keene cement |
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Question number: 3
» S-Block Elements Group 1 and 2 » Industrial Uses » Cement
Question
What is composition of Duralumin?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 5 % Al + 0.5 % Mg + 0.5 % Mn + 94 % Cu |
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| b. | 90 % Al + 0.5 % Mg + 0.5 % Mn + 4% Cu |
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| c. | 95 % Al + 0.5 % Mg + 0.5 % Mn + 4% Cu |
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| d. | 65 % Al + 0.5 % Mg + 25 % Mn + 4.5 % Cu |
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Question number: 4
» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone
Question
If CO 2 is passed in excess into lime water, the milkiness first formed disappears due to?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | reversal of original reaction |
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| b. | formation of soluble calcium carbonate |
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| c. | formation of volatile calcium derivative |
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| d. | formation of soluble magnesium hydroxide |
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Question number: 5
» S-Block Elements Group 1 and 2 » Industrial Uses » Limestone
Question
Mortar is mixture of?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | and |
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| b. | and silica |
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| c. | , water |
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| d. | , silica, water |
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Question number: 6
» S-Block Elements Group 1 and 2 » Industrial Uses » Plaster of Paris
Question
Plaster of Paris is obtained on heating gypsum at?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | 120 0 C |
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| b. | 200 0 C |
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| c. | 150 0 C |
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| d. | 180 0 C |
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Question number: 7
» S-Block Elements Group 1 and 2 » Industrial Uses » Lime
Question
Slaked lime is obtained when water is added to?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. |
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| b. |
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| c. |
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| d. |
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