Practice Nature of matter and composition - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) Which one of the following is not a mixture?
(a)
(b)
(c)
(d)
Q-2) Wooden pencil used for writing contains
(a)
(b)
(c)
(d)
Q-3) Which one among the following is not a mixture?
(a)
(b)
(c)
(d)
Q-4) At NTP, the least volume will be occupied by 15 g of which one of the following ?
(a)
(b)
(c)
(d)
Q-5) The boiling point of alcohol is 78°C. What is this temperature in Kelvin scale
(a)
(b)
(c)
(d)
Q-6) Which chemical was an important symbol in our freedom struggle ?
(a)
(b)
(c)
(d)
Q-7) In which of the following the constituents are present in any ratio?
(a)
(b)
(c)
(d)
Q-8) Non-reacting gases have a tendency to mix with each other. This phenomenon is known as
(a)
(b)
(c)
(d)
Q-9) The chemical formula of Borax is
(a)
(b)
(c)
(d)
Q-10) What is the term used to denote the critical temperature at which the air becomes saturated with vapour and below which the condensation is likely to begin ?
(a)
(b)
(c)
(d)
Q-11) Which of the following is a good lubricant ?
(a)
(b)
(c)
(d)
Q-12) The chemical technique applied to find out age of fossils is knows as
(a)
(b)
(c)
(d)
Q-13) Which of the following is a colloid ?
(a)
(b)
(c)
(d)
Those substances which can not pass through the membrane are termed colloids.
Example: silicic acid.
Whereas sugar solution, urea and NaCl can pass through the membrane.
Q-14) Which one of the following is used in the preparation of antiseptic solution?
(a)
(b)
(c)
(d)
Q-15) Amalgam is a solution of
(a)
(b)
(c)
(d)
Q-16) Purity of a solid substance can be checked by its
(a)
(b)
(c)
(d)
Every pure solid has a fixed melting point.
Q-17) Filtration can be used to separate
(a)
(b)
(c)
(d)
Q-18) Which one of the following mixtures is homogeneous?
(a)
(b)
(c)
(d)
Q-19) Cloud or fog is an example of colloidal system of
(a)
(b)
(c)
(d)
Fog is a colloidal system consisting water droplets dispersed in air.
Q-20) Kerosene is a mixture of
(a)
(b)
(c)
(d)