Science and Scientific Research - General Knowledge Questions and Answers

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(Q1) General Knowledge » Science and Scientific Research

Which of the following is an organic compound with the formula CH3OC6H5 used as a perfume, fragrance and solvent?

A

Acetophenone 

B

Anisole 

C

Aniline

D

Toluene 

(Q2) General Knowledge » Science and Scientific Research

Identify an example of decomposers that are found in the bottom of a pond.

A

Flagellates

B

Phytoplankton

C

Zooplankton

D

Jellyfishes

(Q3) General Knowledge » Science and Scientific Research

Chemical formula of magnesium oxide is ______.

A

MgO

B

MgO2

C

Mg(OH)2

D

MgCO3

(Q4) General Knowledge » Science and Scientific Research

There are ______ main types of cell division.

A

5

B

3

C

2

D

4

(Q5) General Knowledge » Science and Scientific Research

An electric current is expressed by a unit called _________.

A

joule

B

meter

C

ampere

D

watt

(Q6) General Knowledge » Science and Scientific Research

The chemical formula of borax is _________.

A

Na2B4O7.10H2O

B

Na2B4O7.12H2O

C

Na2B5O7.10H2O

D

Na2B4O7.5H2O

(Q7) General Knowledge » Science and Scientific Research

______ is found in association with rocks composed of calcium carbonates?

A

Gold

B

Iron

C

Limestone

D

Diamond

(Q8) General Knowledge » Science and Scientific Research

Husk of a coconut is made of ______ tissue.

A

Xylem

B

Parenchyma

C

Scherenchyma

D

Collenchyma

(Q9) General Knowledge » Science and Scientific Research

Identify the correct statement with respect to unsaturated hydrocarbons.

A

Compounds of carbon having double bonds or triple bonds between their carbon atoms are called unsaturated compounds.

B

Compounds of carbon having single bonds between their oxygen atoms are called unsaturated compounds.

C

Compounds of carbon having a single bond between their carbon atoms are called unsaturated compounds.

D

Compounds of carbon having double or triple bonds between their hydrogen atoms are called unsaturated compounds.

(Q10) General Knowledge » Science and Scientific Research

Which of the following options is NOT correct about plant cells?

A

Generally, all plant cells contain chloroplast.

B

Cell wall of a plant cell is made up of cellulose.

C

A plant cell usually contains a large vacuole.

D

The plant cells cannot divide by mitosis.

(Q11) General Knowledge » Science and Scientific Research

Who conducted X-ray spectroscopic study of a large number of elements and showed that the frequency of X-rays emitted by an element is related to the atomic number, Z, rather than the atomic mass?

A

Dmitri Mendeleev

B

Henry Moseley

C

Lothar Meyer 

D

Johann Dobereiner

(Q12) General Knowledge » Science and Scientific Research

Identify an option that does NOT represent prokaryotic cells.

A

Sperm

B

Mycoplasma

C

Pleuropneumonia-like organism

D

Blue-green alga

(Q13) General Knowledge » Science and Scientific Research

Evangelista Torricelli was well known for which discovery?

A

Invention of spring balance 

B

Invention of vacuum gauge 

C

Invention of mercury barometer 

D

Invention of piezometer 

(Q14) General Knowledge » Science and Scientific Research

Chemical formula of gypsum is ______.

A

CaSO4.2H2O

B

CaSO4.H2O

C

CaSO4

D

CaSO4.(1/2)H2O

(Q15) General Knowledge » Science and Scientific Research

Which of the following are members of 15 naturally occurring metallic chemical elements whose atomic numbers are between 57 and 71?

A

Alkali Metals 

B

Halogens 

C

Actinides 

D

Lanthanides 

(Q16) General Knowledge » Science and Scientific Research

Identify the animal that is NOT a non-chordate.

A

Porifera

B

Arthropods

C

Arachnids

D

Repltiles

(Q17) General Knowledge » Science and Scientific Research

The body of the ______ is circular in cross-section, hence, the name roundworms. They may be free living, aquatic and terrestrial or parasitic in plants and animals.

A

Mollusca

B

Platyhelminthes

C

Ctenophores

D

Aschelminthes

(Q18) General Knowledge » Science and Scientific Research

Which French chemist was one of the first scientists to synthesise organic compounds such as formic acid, methane and acetylene from their elements?

A

Auguste Laurent

B

Jacob Berzelius

C

Marcellin Berthelot

D

Antoine Lavoisier

(Q19) General Knowledge » Science and Scientific Research

Roquefortine C is found in:

A

chicken

B

Egg

C

cheese

D

Meat

(Q20) General Knowledge » Science and Scientific Research

Which force is responsible for the motion of the moon around earth?

A

Frictional

B

Centrifugal

C

Centripetal

D

Van der Waals