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Top 1000 GK Questions for Competitive Exams

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General Science Questions

Q :  

The atoms of Germanium, Arsenic, Selenium and Bromine contain _____ shells.

(A) 4

(B) 3

(C) 5

(D) 7

Correct Answer : A

Q :  

Give an example of a slat which gives an aqueous solution of pH less than 7.

(A) Sodium chloride

(B) Ammonium chloride

(C) Sodium carbonate

(D) Sodium bicarbonate

Correct Answer : B

Q :  

_____ solution is used to treat a bee sting.

(A) Lemon juice

(B) Milk

(C) Vinegar

(D) Baking soda

Correct Answer : D

Q :  

The force that a neutron exerts on a proton inside an atom is:

(A) Nuclear force

(B) Gravitational force

(C) Tidal force

(D) Electrostatic force

Correct Answer : A

Q :  

Weight of an object on the moon is ______ the weight of the object on earth.

(A) 1/5th

(B) 1/2th

(C) 1/6th

(D) Equal to

Correct Answer : C

Q :  

___ elements have the largest atoms.

(A) F

(B) O

(C) H

(D) Li

Correct Answer : D

Q :  

Atmospheric temperature increasing at the higher altitudes is called 

(A) Radiation

(B) Inversion

(C) Conduction

(D) Convection

Correct Answer : B

Q :  Which of the following carbohydrates is a polysaccharide?

(A) Fructose

(B) Cellulose

(C) Glucose

(D) Sucrose

Correct Answer : B
Explanation :
Answer: B) Cellulose Explanation: Carbohydrates are also called as saccharides are molecular compounds made from just three elements: carbon, hydrogen and oxygen.   Carbohydrates are: * a source of energy for the body e.g. glucose and a store of energy, e.g. starch in plants * building blocks for polysaccharides (giant carbohydrates), e.g. cellulose in plants and glycogen in the human body * components of other molecules eg DNA, RNA, glycolipids, glycoproteins, ATP   Types: 1. Monosaccharides (e.g. glucose) and 2. Disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars. 3. Other carbohydrate molecules are very large called Polysaccharides such as starch and cellulose.

Q :  Which of the following does not influence haemoglobin saturation?

(A) Nitric oxide

(B) Carbon dioxide

(C) Temperature

(D) DPG

Correct Answer : A
Explanation :
Answer: A) Nitric oxide Explanation:

Q :  Where does glycolysis take place?

(A) Mitichondria

(B) Cytoplasm

(C) Mitochondrial outer membrane

(D) None of above

Correct Answer : B
Explanation :
Answer: B) Cytoplasm Explanation: "Glycolysis" means the splitting of glucose. The first step of the process occurs in the cytoplasm of the cell and yields a small amount of energy (measured in units of ATP) and two molecules of pyruvate. The other steps occur in the mitochondria. It is an ongoing process as your cells have a constant need for energy.

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