NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension: Questions 275 - 281 of 1058

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Question number: 275

» Biology » Our Environment

MCQ▾

Question

In the following, best methods of determining the age of tree is to

Choices

Choice (4) Response

a.

measure its height

b.

count the number of leaves

c.

measure its diameter

d.

count the number of annual rings in the main stem at the base

Question number: 276

» Physics » Sound

MCQ▾

Question

SONAR is based on the principle of

Choices

Choice (4) Response

a.

vibration

b.

echo

c.

resonance

d.

All of the above

Question number: 277

» Biology » Human Body

MCQ▾

Question

The bacteria present in human intestine which help in synthesis of vitamin-B complex is

Choices

Choice (4) Response

a.

E. coli

b.

Rhizobium

c.

Lactobacillus

d.

Azetobactor

Question number: 278

» Biology » Plant and Animal Nutrition

MCQ▾

Question

Which of the following is used for determining the rate of transpiration in plants?

Choices

Choice (4) Response

a.

Potometer

b.

Auxanometer

c.

Tensiometer

d.

Porometer

Question number: 279

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Which of these methods is used to extract alcohol from a mixture of alcohol and water?

Choices

Choice (4) Response

a.

Oxidation

b.

Bleaching

c.

Crystallization

d.

Distillation

Question number: 280

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Varsha adds a few drop of the universal indicator solution to a dilute solution of Equation taken in a test-tube. She observed………colour.

A test-tube containing dilute solution of NaHCO3

A Test-Tube Containing Dilute Solution of NaHCO3

Find colour of mixture after adding universal indicator solution in test-tube

Choices

Choice (4) Response

a.

green

b.

Yellow

c.

mustard

d.

blue

Question number: 281

» Chemistry » Metals & Non Metals

MCQ▾

Question

A compound ‘X’ is an allotrope of an element of atomic number 6. Compound ‘X’ is greyish-black in color. By nature, it is opaque and it is used in making ‘pencil leads’ and black paints. Identify the compound ‘X’.

Choices

Choice (4) Response

a.

Carbon

b.

Graphite

c.

Lead

d.

Fullerene

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