Science and Scientific Research - General Knowledge Questions and Answers

Attempt Mode

General Knowledge » Science and Scientific Research

pH of milk of magnesia is ______.

A

12

B

8

C

10

D

14

General Knowledge » Science and Scientific Research

What is the average height of troposphere?

A

20 km

B

8 km

C

13 km

D

24 km

General Knowledge » Science and Scientific Research

Identify a dark-coloured amorphous substance that is highly resistant to microbial action and undergoes decomposition at an extremely slow rate.

A

Chitin

B

Humus

C

Carotenoids

D

Colloids

General Knowledge » Science and Scientific Research

A

i-b, ii-a, iii-c, iv-d

B

i-c, ii-b, iii-d, iv-a

C

i-b, ii-c, iii-a, iv-d

D

i-d, ii-c, iii-b, iv-a

General Knowledge » Science and Scientific Research

How many anions surround a sodium ion in a crystal lattice of sodium chloride?

A

Seven

B

Six

C

Eight

D

Nine

General Knowledge » Science and Scientific Research

Which of the following is NOT associated with Aryabhata?

A

Spoke about elaborate surgical procedures

B

Stated that day and night were caused by the rotation of the earth on its axis.

C

Found a way of calculating the circumference of a circle

D

Developed a scientific explanation for eclipses

General Knowledge » Science and Scientific Research

Identify the function of plasmid DNA.

A

To confer certain unique phenotypic characters to bacteria

B

None of the given options are correct

C

To help in the formation of rRNA

D

To form blood cells

General Knowledge » Science and Scientific Research

Who among the following proposed the term ‘ecosystem’?

A

Turreson

B

AG Tansely

C

Lindeman

D

Grinnel

General Knowledge » Science and Scientific Research

Identify the step that is NOT a part of decomposition.

A

Leaching

B

Catabolism

C

Humification

D

Soil erosion

General Knowledge » Science and Scientific Research

Which of the following is natural acid-base indicator?
I. Litmus
II. Turmeric

A

Only II

B

Only I

C

Both I and II

D

Neither I nor II

General Knowledge » Science and Scientific Research

Which nutrient is chlorella rich in?

A

Roughage

B

Protein

C

Fats

D

Carbohydrates

General Knowledge » Science and Scientific Research

Who was the first to accurately describe the rings of Saturn as a disc around the planet in 1655?

A

Hideki Yukawa 

B

Christiaan Huygens 

C

Galileo Galilei

D

Giovanni Cassini 

General Knowledge » Science and Scientific Research

What is the commercial unit of electric energy?

A

Watt-hour

B

Kilowatt hour

C

Kilowatt per hour

D

Watt per hour

General Knowledge » Science and Scientific Research

______ - time graph shows speed of an object.

A

Distance

B

Acceleration

C

Velocity

D

Displacement

General Knowledge » Science and Scientific Research

In early 1610, who discovered with his newly invented telescope that Jupiter has four moons?

A

Galileo Galilei

B

Johannes Kepler

C

Simon Marius

D

Tycho Brahe

General Knowledge » Science and Scientific Research

In leaves transpiration takes place through ______.

A

Guard cells

B

Epidermal cell

C

Stomata

D

Cork cell

General Knowledge » Science and Scientific Research

Which is the most popular coal in commercial use?

A

Lignite

B

Peat

C

Bituminous

D

Anthracite

General Knowledge » Science and Scientific Research

What powers the Earth's internal heat engine?

A

Tides

B

Radioactive energy

C

Solar Energy

D

Volcanoes

General Knowledge » Science and Scientific Research

Which of the following is a unit of distance?

A

Watt

B

Newton

C

Light year

D

Joule

General Knowledge » Science and Scientific Research

Which of the following has unit m/s2?

A

Acceleration

B

Velocity

C

Speed

D

Distance