NSO Level 1- Science Olympiad (SOF) Class 7: Questions 274 - 279 of 597

Access detailed explanations (illustrated with images and videos) to 597 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 350.00 or

How to register?

Question number: 274

» Acids, Bases and Salts

Edit
MCQ▾

Question

Which of the following is example of base?

Example of base

Example of Base

Choices

Choice (4)Response

a.

Vinegar.

b.

Pickle.

c.

Dish detergent.

d.

Question does not provide sufficient data or is vague

Question number: 275

» Fibre to Fabric

Edit
MCQ▾

Question

During silk harvesting which are the main problems employees working in silk industry face?

Choices

Choice (4)Response

a.

Respiratory disorder

b.

Blisters

c.

Open wounds

d.

All a. , b. and c. are correct

Question number: 276

» Physical and Chemical Changes

Edit
MCQ▾

Question

Which of the following is the common name for NaHCO3?

Choices

Choice (4)Response

a.

Baking soda

b.

Lime water

c.

Vinegar

d.

Limestone

Question number: 277

» Physical and Chemical Changes

Edit
MCQ▾

Question

Respiration is a process.

Choices

Choice (4)Response

a.

Physical process

b.

Permanent process

c.

Biological process

d.

Chemical process

Question number: 278

» Physical and Chemical Changes

Edit
MCQ▾

Question

The ability or inability of a matter to undergo change that alters the composition of the matter is due to which of the following characteristic property?

Choices

Choice (4)Response

a.

Chemical change

b.

Physical property

c.

Chemical property.

d.

Physical change

Question number: 279

» Physical and Chemical Changes

Edit
MCQ▾

Question

Which of the following change is involved in the process of changing color of an apple slice to brown?

Image of the changing color of an apple

Image of the Changing Color of an Apple

Choices

Choice (4)Response

a.

No change

b.

Physical change

c.

Chemical change

d.

Biological change

Developed by: