Metals and Non - Metals [NSO Level 1- Science Olympiad (SOF) Class 10]: Questions 1 - 9 of 90
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Question 1
Question 2
Question MCQ▾
What are x and y in the above reaction?
Choices
Choice (4) | Response | |
---|---|---|
a. | and | |
b. | and | |
c. | and | |
d. | and |
Question 3
Question MCQ▾
What is the chemical formula of super phosphate of lime?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 4
Question MCQ▾
Phosphorous pentoxide in mainly used as?
Choices
Choice (4) | Response | |
---|---|---|
a. | Drying agent | |
b. | Reducing agent | |
c. | Hydrating agent | |
d. | Oxidizing agent |
Question 5
Question MCQ▾
this reaction is an example of … process?
Choices
Choice (4) | Response | |
---|---|---|
a. | Self reduction | |
b. | Calcination | |
c. | Electrolysis | |
d. | Auto reduction |
Question 6
Question MCQ▾
Which of the following metal is used as reducing agent in thermite process?
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 7
Question MCQ▾
Which observation is true from the following reactions
Choices
Choice (4) | Response | |
---|---|---|
a. | C is reduced | |
b. | Metal oxide oxidized | |
c. | Metal oxide reduced | |
d. | None of the above |
Question 8
Question MCQ▾
Select the metal from the following that does not react with sulphuric acid ?
Choices
Choice (4) | Response | |
---|---|---|
a. | Zinc | |
b. | Iron | |
c. | Magnesium | |
d. | Gold |
Question 9
Question MCQ▾
Which of the following is used calico printing, print industry and to joining the pieeces of china clay?
Choices
Choice (4) | Response | |
---|---|---|
a. | Water glass | |
b. | Calcium Chloride | |
c. | Silicones | |
d. | Carborandum |