Focus Guide for 11th Chemistry. We covered all the Focus Guide for 11th Chemistry MCQs in this post for free so that you can practice well for the exam.
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Focus Guide for 11th Chemistry Objective for Students
Ozone is an ……… of oxygen:
(a) Allotrope.
(b) Isotope.
(c) Isobar.
(d) Isotone.
Option a – Allotrope
The process of losing electrons is known as …….
(a) Oxidation.
(b) Reduction.
(c) Radiation.
(d) Both oxidation and reduction.
Option a – Oxidation
Anions are formed by …….
(a) Losing of electrons.
(b) Gaining of electrons.
(c) Gaining of neutrons.
(d) Losing of neutrons.
Option b – Gaining of electrons
Which one of the following Thermal is a bad Conductor?
(a) Aluminium.
(b) Copper.
(c) Glass.
(d) Silver.
Option c – Glass
Rusting is …….
(a) Electrolysis.
(b) Oxidation.
(c) Redox reaction (Oxidation and Reduction).
(d) Reduction.
Option c – Redox reaction (Oxidation and Reduction)
Which of the following gases is heavier than oxygen?
(a) Carbon dioxide.
(b) Ammonia.
(c) Methane.
(d) Helium.
Option a – Carbon dioxide
Which among the following is an example of solid sol?
(a) Milk of magnesia.
(b) Foam.
(c) Coloured gemstones.
(d) Rubber.
Option c – Coloured gemstones
The process of gaining electrons is known as ….
(a) Oxidation.
(b) Reduction.
(c) Radiation.
(d) Both oxidation and reduction.
Option b – Reduction
Which of the following metals (shown by its symbol) is generally used for making filaments of a bulb?
(a) Fe.
(b) Au.
(c) Ag.
(d) W.
Option d – W
Which of the following bonds are weakest in nature?
(a) Single bond.
(b) Double bond.
(c) Triple bond.
(d) Hydrogen bond.
Option d – Hydrogen bond
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