Chemistry-Separation of Substances [NSTSE (National Science Talent Search Exam- Unified Council) Class 6]: Questions 1 - 7 of 48

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Question 1

Separation of Substances

Question

MCQ▾

The ore which can attract iron was found in Magnesia. It was first named as

Choices

Choice (4)Response

a.

Lodestone

b.

Magnetite

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question 2

Separation of Substances

Question

MCQ▾

The magnetic field lines of a bar magnet originates from ________ pole and Ends at ________ pole

Choices

Choice (4)Response

a.

South, north

b.

North, south

c.

South, west

d.

All of the above

Question 3

Separation of Substances

Question

MCQ▾

What is the curie temperature of nickel?

Choices

Choice (4)Response

a.

669.2 degrees Fahrenheit

b.

354 degrees Celsius

c.

627 K

d.

All a., b. and c. are correct

Question 4

Separation of Substances

Question

MCQ▾

What is the curie temperature of iron?

Choices

Choice (4)Response

a.

1071 K

b.

1053 K

c.

1043 K

d.

1029 K

Question 5

Separation of Substances

Question

MCQ▾

The word magnet was derived from the word ________.

Choices

Choice (4)Response

a.

Magni

b.

Magna

c.

Magnum

d.

Magnetite

Question 6

Separation of Substances

Question

MCQ▾

If we keep two magnetic north poles facing towards each other together for a long time, then the magnet will become

Choices

Choice (4)Response

a.

Stronger

b.

Weaker

c.

None of the above

d.

All of the above

Question 7

Separation of Substances

Question

MCQ▾

Which type of electromagnet is used in calling bell?

Choices

Choice (4)Response

a.

Horse shoe electromagnet

b.

Circular shaped electromagnet

c.

L shaped electromagnet

d.

I shaped electromagnet

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