NSO Level 1- Science Olympiad (SOF) Class 7: Questions 280 - 284 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: 280

» Acids, Bases and Salts

Edit
MCQ▾

Question

Vanilla is an ________ indicator.

Choose the correct option which correctly fills the blank.

Choices

Choice (4)Response

a.

Synthetic Indicator

b.

Olfactory Indicator

c.

Universal Indicator

d.

Visible Indicator

Question number: 281

» Fibre to Fabric

Edit
Match List-Ⅰ List-Ⅱ▾

Question

Match the Column I with Column II and select the correct option from the codes given below.

List-Ⅰ (Material)List-Ⅱ (Smell when Burnt)

(A)

Silk

(i)

Burning Hair.

(B)

Nylon

(ii)

Burning Plastic.

(C)

Cotton

(iii)

Burning Paper.

Choices

Choice (4)Response
  • (A)
  • (B)
  • (C)

a.

  • (i)
  • (iii)
  • (ii)

b.

  • (iii)
  • (ii)
  • (i)

c.

  • (i)
  • (ii)
  • (iii)

d.

All of the above

Question number: 282

» Acids, Bases and Salts

Edit
MCQ▾

Question

An experiment is performed in which china rose is used as an indicator with test solution being lime juice. The result shows change in color. Which of the following color is observed?

Choices

Choice (4)Response

a.

Pink Color

b.

Magenta

c.

Colorless

d.

Green Color

Question number: 283

» Nutrition in Plants and Animals

Edit
MCQ▾

Question

Light is absorbed by which of the following pigments for photosynthesis?

Choices

Choice (4)Response

a.

Anthocynin

b.

Pheophytin

c.

Chlorophyll

d.

Question does not provide sufficient data or is vague

Question number: 284

» Acids, Bases and Salts

Edit
MCQ▾

Question

Why antacids are prescribed by doctors for problems related to hyperacidity?

Choices

Choice (4)Response

a.

Because it contains weak acid

b.

Because it contains base

c.

Because it contains strong acid

d.

None of the above

Developed by: