NSO Level 1- Science Olympiad (SOF) Class 10: Questions 654 - 661 of 1497
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Question 654
Question MCQ▾
Which of the following is formed when nitric acid oxidizes sulphur?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 655
Question MCQ▾
Which of the following types of ores are subjected to roasting?
Choices
Choice (4) | Response | |
---|---|---|
a. | Carbonate ores | |
b. | Oxide ores | |
c. | Sulphide ores | |
d. | Silicate ores |
Question 656
Question MCQ▾
… Gas is liberated when copper is treated with concentrated
Choices
Choice (4) | Response | |
---|---|---|
a. | Hydrogen Sulphide | |
b. | Sulphur dioxide | |
c. | Sulphur trioxide | |
d. | Hydrogen |
Question 657
Question MCQ▾
Which gas is present in brisk effervescence, when carboxylic acid is treated with
Choices
Choice (4) | Response | |
---|---|---|
a. | Oxygen gas | |
b. | ||
c. | Benzene | |
d. | Butane |
Question 658
Question MCQ▾
… number of carbon atoms form a spherical molecule of Buckminster fullerene?
Choices
Choice (4) | Response | |
---|---|---|
a. | 90 | |
b. | 40 | |
c. | 60 | |
d. | 80 |
Question 659
Question MCQ▾
Vinegar is manufactured by mixing … percentage of acetic acid in water?
Choices
Choice (4) | Response | |
---|---|---|
a. | 8% | |
b. | 25% | |
c. | 40% | |
d. | 50% |
Question 660
Question MCQ▾
Select the correct order from the following regarding their abundance in earth crust?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 661
Question MCQ▾
Which of the following is anionic part of a synthetic detergent?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |