Biology

 Fe₂O3 + 2A1→ Al₂O₂ + 2Fe .The above reaction is an example of a

(A) Combination reaction

 (B) Double displacement reaction

(C) Decomposition reaction 

 (D) Displacement reaction 

 The Phloem in plants are responsible for
(A) Transport of food
(B) Transport of water
(C) Carrying oxygen
(D) Carrying amino acids

 Which of the following is a plant hormone?
(A) Gibberellins
(C) Insulin
(B) Oestrogen
(D) Thyroxin
 

  Fod cans are coated with tin and not with zinc because-

(A) zinc is more expensive than tin

(B) zinc has higher melting point than tin

 (C) zinc is more reactive than tin 1 

 (D) zinc is less reactive than tin

The device which converts the electrical energy into mechanical energy is known as
(A) Generator
(C) Voltmeter
(B) Motor
(D) Ammeter
 

Which one of the following types of medicines is used to treating in digestion? 1 (A) Antibiotic 

(B) Analigesic

 (C) Antacid

 (D) Anticeptic
 

 For a convex lens, the point at which the incident ray passes straight without
bending is known as
(A) Point of focus
(B) Aperture
(C) Optical center
(D) Center of curvature

Resistance of a conducting wire depends
(A) on its length
(B) on its temperature
(C) on its area of across section 

(D) all of these
 

Father of Indian Surgery is: a. Dhanvantari b. Charakac. Sushruta d. Atreya 

Outbreak of disease in the community in excess the normal 
expectation is:
a. Epidemic b. Pandemic c. Sporadic d. Endemic