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 NOT a neutral oxide?

A

Na2O

B

NO 

C

N2O

D

CO

(Q2) General Knowledge » Science and Scientific Research

Which of the following pair of compound name – formula is correct?
I. Hydrogen chloride – H2Cl
II. Hydrogen sulphide – HS2

A

Both I and II

B

Neither I nor II

C

Only I

D

Only II

(Q3) General Knowledge » Science and Scientific Research

Which of the following liquids can dissolve noble metals such as gold and platinum?

A

Acetic acid

B

Chloroform 

C

Formic acid

D

Aqua regia

(Q4) General Knowledge » Science and Scientific Research

Which of the following is a radio isotope of the hydrogen?

A

Thorium

B

Xenon

C

Tritium

D

Technetium

(Q5) General Knowledge » Science and Scientific Research

Which of the following statement is correct?
I. On combustion in excess of air, lithium forms mainly the oxide.
II. The alkali metal halides are all high melting, colourless crystalline liquids.

A

Only II

B

Only I

C

Both I and II

D

Neither I nor II

(Q6) General Knowledge » Science and Scientific Research

Which physical theory explains the generation of thrust by rocket engines, jet engines and deflating balloons?

A

Faraday’s laws of electromagnetic induction

B

Exclusion principle

C

Newton’s laws of motion

D

Laws of thermodynamics

(Q7) General Knowledge » Science and Scientific Research

Which of the following is a severe form of malnutrition that commonly affects infants and toddlers, most often around the age of weaning through age 5?

A

Bacterial meningitis

B

Diarrhoea

C

Pneumonia

D

Kwashiorkor

(Q8) General Knowledge » Science and Scientific Research

Whose law states that at a junction in an electric circuit, the sum of the currents flowing into the junction is equal to the sum of the currents flowing out of the junction?

A

Gustav Robert Kirchhoff

B

Georg Simon Ohm

C

Michael Faraday

D

Victor Francis Hess

(Q9) General Knowledge » Science and Scientific Research

Which of the following element has atomic number 87?

A

Rubidium

B

Caesium

C

Francium

D

Lithium

(Q10) General Knowledge » Science and Scientific Research

The lead chromate which is toxic and carcinogenic, is used for the adulteration of __________ powder.

A

ginger

B

garlic

C

chili

D

turmeric

(Q11) General Knowledge » Science and Scientific Research

Which of the following statements is correct?

A

Atomic radius decreases across a period and increases down a group in the periodic table. 

B

Atomic radius increases across a period and decreases down a group in the periodic table. 

C

Atomic radius increases across a period and increases down a group in the periodic table.  

D

Atomic radius decreases across a period and down a group in the periodic table.  

(Q12) General Knowledge » Science and Scientific Research

Compounds with exactly two double carbon – carbon bonds are knows as ______.

A

Dienes

B

Trialkyne

C

Dialkyne

D

Terpenes

(Q13) General Knowledge » Science and Scientific Research

Which disease refers to the inflammation of the liver caused by a variety of infectious viruses and non-infectious agents leading to a variety of health problems?

A

Tuberculosis

B

Hepatitis

C

Diabetes

D

Pneumonia

(Q14) General Knowledge » Science and Scientific Research

What components are often called the building blocks of the body that play a vital role in helping to repair and strengthen muscle tissues after exercise?

A

Micronutrients

B

Fats

C

Carbohydrates

D

Proteins

(Q15) General Knowledge » Science and Scientific Research

The given equation describes the _________ relation.
s = u t +1/2 a t2

A

distance-time

B

position-velocity

C

position-time

D

velocity-time

(Q16) General Knowledge » Science and Scientific Research

How do humans acclimatise at high altitudes where atmospheric pressure is low for normal breathing?

A

By hibernating   

B

 By increasing white blood cell production, decreasing the binding affinity of haemoglobin and by increasing breathing rate  

C

By increasing red blood cell production, decreasing the binding affinity of haemoglobin and by increasing breathing rate  

D

By decreasing red blood cell production, decreasing the binding affinity of haemoglobin and by increasing breathing rate   

(Q17) General Knowledge » Science and Scientific Research

What is the role of ribosomes of a polysome?

A

 Help in making DNA 

B

 Create rRNA 

C

 Help in DNA replication  

D

Translate the mRNA into proteins  

(Q18) General Knowledge » Science and Scientific Research

Who synthesised acetic acid for the first time?

A

Kolbe

B

 Berzelius 

C

Berthelot  

D

F Wohler  

(Q19) General Knowledge » Science and Scientific Research

What is the common name of CHCl3?

A

Chloroform   

B

Ethylchloride 

C

 Sodium chloride  

D

 Hydrochloric acid 

(Q20) General Knowledge » Science and Scientific Research

Who showed that heating silver cyanide (an inorganic compound) with ammonium chloride (another inorganic compound) produced urea without the aid of any living organism or part of a living organism, in 1828?

A

Alfred Werner 

B

Antoine Lavoisier

C

Ernest Lawrence

D

Friedrich Wohler