Everyday Science Mcqs


Q.  lightest metal is__________?

a. Lithium
b. Sodium
c. Magnesium
d. Aluminium


ANSWER: See Answer
 
The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water.
MCQs:  All of the following organs in the human body are located both on the right and the left sides, except;_________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following is both endocrine and exocrine gland?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  When sound waves travel from air to water which of the following quantities remains unchanged?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Sound travels in air at an average speed of nearly________ ?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Hepatitis C is a leading cause of_________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  “Gastric juice” is a secretion of the glands present in________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Isotopes of an element have the same number of _______?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  NASA scientists have recently detected water vapor on which Jupiter’s moon?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Name the animal which can live without water in its entire life?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following is the study of micro- organisms, mostly viruses and single called organisms such as bacteria, yeasts and protozoa ?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  What’s the Strongest Muscle in the Human Body based on its weight?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following protects the body against infectious disease and foreign invaders?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following is commonly called a polyamide ?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following is not a chemical reaction ?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which of the following is used in beauty parlours for hair setting?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Which one of the following non-metals is not a poor conductor of electricity?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Eletromagneticism is the branch of___________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Second name of ethyl alcohol is___________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Transistor is a device that convert weak signal into__________?
Category: General Knowledge Quiz,   Published by: teswesm
MCQs:  Dioptre is a unit of measurement for __________ ?
Category: General Knowledge Quiz,   Published by: teswesm