Science and Scientific Research - General Knowledge Questions and Answers


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(Q1) General Knowledge » Science and Scientific Research

______ is a group of cells similar in structure and function.

A

Organ

B

Organ system

C

Molecule

D

Tissue

(Q2) General Knowledge » Science and Scientific Research

The chemical formula of gypsum is _________.

A

MgSO4.12H2O

B

CaSO4.12H2O

C

MgSO4.2H2O

D

CaSO4.2H2O

(Q3) General Knowledge » Science and Scientific Research

Identify the function of the enzyme trypsin.

A

Emulsifying insulin

B

Breaking down carbohydrates

C

Digesting proteins

D

Digesting roughage and fats

(Q4) General Knowledge » Science and Scientific Research

What is the set of ecosystem called?

A

Hydrosphere

B

Biome

C

Atmosphere

D

Stratosphere

(Q5) General Knowledge » Science and Scientific Research

Low annual range of temperature and high annual rainfall are characteristics of a _____.

A

Mediterranean climate

B

tropical humid climate

C

temperate climate

D

cold climate

(Q6) General Knowledge » Science and Scientific Research

Which of the following is a strong reducing agent used to reduce aldehydes, ketones, esters, carboxylic acid chlorides, carboxylic acids and even carboxylate salts to alcohols?

A

Titanium hydride

B

Lithium aluminum hydride 

C

Bismuth hydride

D

Calcium hydride 

(Q7) General Knowledge » Science and Scientific Research

The motion of the body moving along a circular path is an example of ______.

A

accelerated motion

B

uniform motion

C

non-uniform motion

D

decelerated motion

(Q8) General Knowledge » Science and Scientific Research

Chemical formula of bleaching powder is ______.

A

CaO

B

CaOCl2

C

CaCO3

D

Ca(OH)2

(Q9) General Knowledge » Science and Scientific Research

Which of the following is a characteristic of sedimentary rocks?

A

Lineation

B

Foliation

C

Lithification

D

Bands

(Q10) General Knowledge » Science and Scientific Research

Clove is an ______ indicator.

A

Universal

B

Chemical

C

Olfactory

D

Gustatory

(Q11) General Knowledge » Science and Scientific Research

Which of the following is potash alum?

A

Na2SO4Al2(SO4)3.24H2O

B

Na2SO4Al2(SO4)3.20H2O

C

K2SO4Al2(SO4)3.12H2O

D

K2SO4Al2(SO4)3.24H2O

(Q12) General Knowledge » Science and Scientific Research

Identify the correct statement about green algae.

A

Green algae usually have a rigid cell wall made of an inner layer of cellulose and an outer layer of pectose.

B

Green algae usually have a soft cell wall made of an inner layer of pectose.

C

Green algae usually have a rigid cell wall made of an inner layer of fat and an outer layer of protein.

D

Green algae usually have a rigid cell wall made of an inner layer of protein and an outer layer of fibre.

(Q13) General Knowledge » Science and Scientific Research

Which element of group 13 is a soft metal with a low melting point (303K) and is widely used in doping semiconductors and producing solid-state devices such as transistors?

A

Gallium 

B

Aluminium 

C

Thallium 

D

Boron 

(Q14) General Knowledge » Science and Scientific Research

Which of the following rocks is formed by the cooling and crystallisation of magma?

A

Coal

B

Shell

C

Granite

D

Chalk

(Q15) General Knowledge » Science and Scientific Research

Acid changes the colour of blue litmus to ______.

A

yellow

B

pink

C

red

D

orange

(Q16) General Knowledge » Science and Scientific Research

What is the product of a reaction of calcium carbonate, water and carbon dioxide?

A

Hydrochloric acid

B

Calcium hydroxide

C

Calcium oxide

D

Calcium hydrogen carbonate

(Q17) General Knowledge » Science and Scientific Research

What type of isomerism exists in compounds containing two or more complexes, each of which contains a different set of ligands that can in principle be replaced with a ligand of the other complex?

A

Solvate Isomerism 

B

Coordination isomerism 

C

Ionisation isomerism 

D

Linkage isomerism 

(Q18) General Knowledge » Science and Scientific Research

The atomic number of lead is:

A

82

B

79

C

81

D

78

(Q19) General Knowledge » Science and Scientific Research

If Q = net charge, t = time, then which of the following equations is correct?

A

I=Qt

B

I=Q x t

C

Q=It

D

t=Q x 1

(Q20) General Knowledge » Science and Scientific Research

______ is a change of position.

A

Velocity

B

Speed

C

Distance

D

Motion