GK Tricks 26

Some Important question for competitive exam

1. The red blood cells originate in the: 
(a) Bone marrow (b) Brain (c) Ligaments (d) Muscles 

Answer: (a) Bone marrow

2. Who, amongst the following, is credited with the discovery of penicillin?
(a) Edward Jenner (b) Louis Pasteur (c) Alexander Flemings (d) William Harvey 

Answer: (c) Alexander Flemings

3. Which of the following is essential for the plants to help them in the formation of chlorophyll? 
(a) Calcium V (b) Magnesium (c) Potassium (d) Phosphorus 

Answer: (b) Magnesium

4. The other name of Vitamin C is?
(a) Formic acid (b) Acetic acid (c) Ascorbic acid (d) Riboflavin 

Answer: (c) Ascorbic acid

5. Who is credited with the discovery of neutron? 
(a) Chadwick (b) Bohr (c) Newton (d) Rutherford 

Answer: (a) Chadwick

6. The average life of a red blood cell in the body is about: 
(a) 95 days (b) 105 days (c) 115 days (d) 130 days 

Answer: (c) 115 days

7. Which of the following is used as a preservative of food articles? 
(a) Sodium benzoate (b) Sodium bicarbonate (c) Sodium carbonate (d) Sodium chloride

 Answer: (a) Sodium benzoate

8. DNA is?
(a) Acetic acid (b) Citric acid (c) A class of nucleic acids (d) An enzyme 

Answer: (c) A class of nucleic acids

9. The lustre of diamond is due to? 
(a) Reflection (b) Total internal reflection (c) Refraction (d) It is being the purest form of carbon 

Answer: (b) Total internal reflection

10. Milk in natural form has a certain amount of sugar. This sugar is called? 
(a) Glucose (b) Fructose (c) Lactose (d) Sucrose 

Answer: (c) Lactose