NSO Level 1- Science Olympiad (SOF) Class 8: Questions 1030 - 1036 of 1178
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Question 1030
Question MCQ▾
During electrolysis of water, hydrogen gas is deposited in the
Choices
Choice (4) | Response | |
---|---|---|
a. | Anode | |
b. | Positive terminal | |
c. | Cathode | |
d. | All of the above |
Question 1031
Appeared in Year: 2012
Question MCQ▾
Four experiment on rusting are shown below.
Which two experiment can be used to show that air is needed for iron to rust?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1 and 3 | |
b. | 2 and 3 | |
c. | 2 and 4 | |
d. | 1 and 4 |
Question 1032
Question MCQ▾
An earth quake marked 6 on the Richter scale has an intensity … times than that of 4.
Choices
Choice (4) | Response | |
---|---|---|
a. | 1000 times | |
b. | Times | |
c. | 2 times | |
d. | 100 times |
Question 1033
Question MCQ▾
The device used to test the presence of electric current in a circuit is
Choices
Choice (4) | Response | |
---|---|---|
a. | Spanner | |
b. | Allen key | |
c. | Screw driver | |
d. | Tester |
Question 1034
Question MCQ▾
In the electrolysis of water, the gases produced are
Choices
Choice (4) | Response | |
---|---|---|
a. | Oxygen and hydrogen | |
b. | Oxygen and nitrogen | |
c. | Hydrogen and nitrogen | |
d. | Oxygen and carbon dioxide |
Question 1035
Question MCQ▾
In a solution, the conduction of electricity is caused by
Choices
Choice (4) | Response | |
---|---|---|
a. | Atoms | |
b. | Ions | |
c. | Molecules | |
d. | None of the above |
Question 1036
Appeared in Year: 2012
Question Assertion-Reason▾
Assertion(Ꭺ)
Aquatic animals produce large number of eggs and sperms necessary to ensure external fertilization.
Reason(Ꭱ)
The egg swims in water with the help of cilia, and fertilize the sperms.
Choices
Choice (4) | Response | |
---|---|---|
a. | Ꭺ is false but Ꭱ is true | |
b. | Both Ꭺ and Ꭱ are false | |
c. | Ꭺ is true but Ꭱ is false | |
d. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ |