Some Basic Concepts of Chemistry Class 11 MCQ. We covered all the Some Basic Concepts of Chemistry Class 11 MCQ in this post for free so that you can practice well for the exam.
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Some Basic Concepts of Chemistry Class 11 Objective MCQ for Students
In order to prepare one liter of one normal solution of KMnO4, how many grams of KMnO4 is required, if the solution is to be used in the acid medium for oxidation?
(A) 158 g
(B) 31.60 g
(C) 62.0 g
(D) 790 g
Option b – 31.60 g
Which of the following is ionic in nature?
(A) CuF2
(B) CuCl2
(C) CuBr2
(D) None of these
Option a – CuF2
There are 14 elements in the actinoid series. Which of the following elements does not belong to this series?
(A) U
(B) Np
(C) Tm
(D) Fm
Option c – Tm
Which of the following is amphoteric oxide? Mn2O7, CrO3, Cr2O3, CrO, V2O5, V2O4
(A) V2O5, Cr2O3
(B) Mn207, CrO3
(C) CrO, V2O5
(D) V2O5, V2O4
Option a – V2O5, Cr2O3
Generally, transition elements form colored salts due to the presence of unpaired electrons. Which? of the following compounds will be colored in a solid state?
(A) Ag2SO4
(B) CuF2
(C) ZnF2
(D) Cu₂Cl₂
Option b – CuF2
In addition to a small amount of KMnO4 to concentrated H₂SO4, a green oily compound is obtained which is highly explosive in nature. Identify the compound from the following
(A) Mn2O7
(B) MnO₂
(C) MnSO4
(D) Mn2O3
Option a – Mn2O7
Which of the following oxidation state is common for all lanthanoids?
(A) +2
(B) +3
(C) +4
(D) +5
Option b – +3
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