NSTSE (National Science Talent Search Exam- Unified Council) Class 8: Questions 1904 - 1910 of 2028

Access detailed explanations (illustrated with images and videos) to 2028 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 550.00 or

How to register?

Question number: 1904

» Chemistry » Combustion and Flame

Edit
MCQ▾

Question

Liquid petroleum gas LPG (Cooking gas) is a mixture of?

Choices

Choice (4) Response

a.

Butane and isobutane, propane

b.

Propane and Ethane

c.

Methane and Ethane

d.

Butane and Ethane

Question number: 1905

» Chemistry » Combustion and Flame

Edit
MCQ▾

Question

Select the fuel with highest calorific value from the following?

Choices

Choice (4) Response

a.

Natural gas

b.

Coke

c.

Kerosene

d.

Petrol

Question number: 1906

» Chemistry » Coal and Petroleum

Edit
MCQ▾

Question

What is the temperature used in fractional distribution method for refining fuel oil?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1907

» Chemistry » Metals and Non-Metals

Edit
MCQ▾

Question

What is the reason behind mercury is only used in thermometers?

Choices

Choice (4) Response

a.

It expands on heating

b.

It does not wet on the glass

c.

It is a liquid

d.

All a. , b. and c. are correct

Question number: 1908

» Chemistry » Metals and Non-Metals

Edit
MCQ▾

Question

Calamine is the ore of?

Choices

Choice (4) Response

a.

b.

c.

Magnesium –

d.

All of the above

Question number: 1909

» Chemistry » Combustion and Flame

Edit
MCQ▾

Question

If a fuel has calorific value of and amount of heat produced by burning that fuel is Joules, now how much fuel was burnt (in kg)?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1910

» Chemistry » Metals and Non-Metals

Edit
MCQ▾

Question

Which of the following metals is known for its best conductivity?

Choices

Choice (4) Response

a.

b.

c.

d.

Developed by: