Q: Which of the following is a communicable disease?

A: Measles

B: Scurvy

C: Asthma

D: Diabetes



Correct Option: A  [ Measles ]

Remark:


Q: Which of the following statements is correct ?

A: Protons are negatively charged and are present in the nucleus

B: Electrons are positively charged and are present in the nucleus

C: Electrons are negatively charged and are present in the orbits

D: The entire mass of atom is distributed in the orbits.



Correct Option: C  [ Electrons are negatively charged and are present in the orbits ]

Remark:


Q: The type of crop which is able to fix nitrogen from air is known as:

A: Legume

B: Rice

C: Tuber

D: Potato



Correct Option: A  [ Legume ]

Remark:


Q: Saliva helps in the digestion of:

A: fats

B: starch

C: proteins

D: vitamins



Correct Option: B  [ starch ]

Remark:


Q: Which of the following is not a property of acids ?

A: All acids have sour taste

B: All acids are corrosive in nature

C: For acidic solutions pH = <7

D: Acids tum red litmus to blue



Correct Option: D  [ Acids tum red litmus to blue ]

Remark:


Q: Kidney disease in man is caused by the pollutant

A: Cadmium

B: Iron

C: Cobalt

D: Carbon



Correct Option: A  [ Cadmium ]

Remark:


Q: Which of the following colours is not a primary colour ?

A: Red

B: Yellow

C: Green

D: Blue



Correct Option: B  [ Yellow ]

Remark:


Q: Which is the largest part of the human brain ?

A: Thalamus

B: Pons

C: Cerebrum

D: Ribs



Correct Option: C  [ Cerebrum ]

Remark:


Q: The phenomenon involved in propagation of light waves throuhg optical fibres is :

A: Dispersion of light

B: Scattering of light

C: Total internal reflection of light

D: Refraction of light



Correct Option: C  [ Total internal reflection of light ]

Remark:


Q: What makes a lemon sour?

A: Tartaric acid

B: Oxalic acid

C: Citric acid

D: Hydrochloric acid



Correct Option: C  [ Citric acid ]

Remark:
1...