Basic Concepts of Chemistry NEET Questions. We covered all the Basic Concepts of Chemistry NEET Questions in this post for free so that you can practice well for the exam.
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Basic Concepts of Chemistry NEET Objective Questions for Students
Which of the following has the greatest electron affinity?
(A) I
(B) Br
(C) F
(D) Cl
Option d – Cl
Which of the following is used in the preparation of chlorine?
(A) Both MnO2 and KMnO4
(B) Only KMnO4
(C) Only MnO₂
(D) Either MnO2 or KMnO4
Option a – Both MnO2 and KMnO4
Which of the following statement is true?
(A) Silicon exhibits 4 coordination numbers in its compound
(B) Bond energy of F2 is less than Cl₂
(C) Mn(III) oxidation state is more stable than Mn(II) in an aqueous state.
(D) Elements of 15th gp show only+3 and +5 oxidation states.
Option b – Bond energy of F2 is less than Cl₂
When H₂S is passed through Hg₂ we get
(A) HgS
(B) HgS+Hg₂S
(C) Hg₂S+Hg
(D) Hg₂S
Option c – Hg₂S+Hg
Elements of which of the following bonds will be most readily?
(A) Oxygen family
(B) Nitrogen family
(C) Halogens
(D) Alkali metals
Option c – Halogens
A solution of potassium bromide is treated with each of the following. Which one would liberate bromine?
(A) Hydrogen iodide
(B) Sulphur dioxide
(C) Chlorine
(D) Iodine
Option c – Chlorine
Concentrated hydrochloric acid when kept in open air sometimes produces a cloud of white fumes. This is due to
(A) the Strong affinity of HCl gas for moisture in air results in forming of droplets of the liquid solution which appears like a cloudy smoke.
(B) Due to a strong affinity for water, conc. HCl pulls moisture of air towards self. The moisture forms droplets of water and hence the cloud.
(C) Conc. HCl emits strongly smelling HCl gas all the time
(D) Oxygen in the air reacts with emitted HCl gas to form a cloud of Cl₂ gas.
Option c – Conc. HCl emits strongly smelling HCl gas all the time
The shape of O₂F2 is similar to that of
(A) C₂F2
(B) H₂O
(C) H₂F2
(D) C₂H₂
Option b – H₂O
The acid having O-O bond is :
(A) H₂S₂O3
(B) H₂S₂O6
(C) H₂S₂O8
(D) H₂S406
Option c – H₂S₂O8
Which of the following is not oxidized by O3?
(A) KI
(B) FeSO4
(C) KMnO4
(D) K₂MnO4
Option c – KMnO4
A gas that cannot be collected over water is
(A) N₂
(B) O2
(C) SO2
(D) PH3
Option c – SO2
The acidity of diprotic acids in aqueous solutions increases in the order
(A) H₂S <H₂Se <H₂Te
(B) H₂Se <H₂S <H₂Te
(C) H₂Te <H₂S <H₂Se
(D) H₂Se <H₂Te <H₂S
Option a – H₂S
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