Viraf J Dalal Chemistry Class 10. We covered all the Viraf J Dalal Chemistry Class 10 in this post for free so that you can practice well for the exam.
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Viraf J Dalal Chemistry Class 10 Objective for Students
The oxidation states of most electronegative elements in the product of the reaction of BaO2 with dil.H₂SO4 are
(A) 1 and 2
(B) -1 and +2
(C) -2 and -2
(D) -2 and -1
Option d – -2 and -1
On heating KClO3 we get
(A) KCIO2 + O2
(B) KCl + O₂
(C) KCl + 03
(D) KCI + O₂ + 03
Option d – KCI + O₂ + O3
The oxyacid of sulfur that contains a lone pair of electrons on sulfur is
(A) Sulphurous acid
(B) Sulphuric acid
(C) Peroxodisulphuric acid
(D) Pyrosulphuric acid
Option a – Sulphurous acid
Arrange the following hydrides of group 16 elements in order of increasing stability
(A) H₂S <H₂O <H₂Te <H₂Se
(B) H₂S <H₂Te <H₂Se <H₂S
(C) H₂O <H₂S <H₂Se <H₂Te
(D) H₂Te < H₂Se <H₂S <H₂O
Option d – H₂Te
The hybridization of sulfur in sulfur hexafluoride is
(A) sp³d
(B) sp³d²
(C) sp³d³
(D) sp³
Option b – sp³d²
The sulfur molecule is
(A) Diatomic
(B) Triatomic
(C) Tetratomic
(D) Octa-atomic
Option d – Octa-atomic
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