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Published on: 13/05/2022
QB365 provides detailed and simple solution for every Creative Questions in class 12 Chemistry Subject. It will helps to get more idea about question pattern in every Creative questions with solution.
latest Creative QuestionsDownload Tamil Nadu 12th Standard Chemistry question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Chemistry Test1.
What happens during the electrolysis of molten sodium chloride?
Cl2 is released at the cathode
Liquid sodium is obtained at the anode
The emf of the overall reaction is -4.07 V
Cl2 is released at the cathode and Liquid sodium is obtained at the anode
2.
Kw represents _______.
ionic product constant of water
Solubility product of water
Equilibrium constant of water
Buffer index
3.
Which one of the alcohol cannot be prepared by grignard reagent?
Methanol
ethanol
iso propyl alcohol
phenyl methanol
4.
Which among the following reactions is an example of auto catalysis?
i) CH3COOC2H5+H2O➝ CH3COOH+C2H5OH
ii) 2H2O➝2H2O+O2
iii) 2SO2+O2➝2SO3
iv) 2AsH3➝2As+3H2
only (i)
(i) and (ii)
(i) and (ii)
(i) and (iv)
5.
In pseudo-order reactions ______.
The actual order of reaction is different from that expected using rate law expression
The concentration of at least one reactant is taken in large excess.
The concentration of reactant taken in excess may be taken as constant
All of these
6.
S-S bond is present in _______.
H2S2O7
H2SO5
H2S2O6
H2S2O6
7.
Which of the following is characteristic of ionic solids?
Very low value of electrical conductivity in the molten state
Brittle nature
Very strong forces of attractions
Anisotropic nature
8.
Which of the following is coloured due to charge transfer?
MnO4-
CrO42-
Cu2O
All of these
9.
Among the following, one does not belong to calcination, Pick the odd one out.
\({ PBCO }_{ 3 }\overset { \Delta }{ \longrightarrow } PBO+{ CO }_{ 2 }\uparrow \)
\({ CaCo }_{ 3 }\overset { \Delta }{ \longrightarrow } Cao+{ CO }_{ 2 }\uparrow \)
\(PbS{ O }_{ 3 }\overset { \Delta }{ \rightarrow } PbO+{ 2SO }_{ 2 }\uparrow \)
\({ ZnCO }_{ 3 }\overset { \Delta }{ \rightarrow } ZnO+{ CO }_{ 2 }\uparrow \)
10.
The spin only magnetic moment of [Mnfsr4]2- is 5.9 BM. Geometry of the complex ion is _______.
Tetrahedral
Octahedral
Square planar
Pentagonal pyramidal
1.
(c)
The emf of the overall reaction is -4.07 V
2.
(a)
ionic product constant of water
3.
(a)
Methanol
4.
(d)
(i) and (iv)
5.
(d)
All of these
6.
(d)
H2S2O6
7.
(c)
Very strong forces of attractions
8.
(d)
All of these
9.
(c)
\(PbS{ O }_{ 3 }\overset { \Delta }{ \rightarrow } PbO+{ 2SO }_{ 2 }\uparrow \)
10.
(a)
Tetrahedral
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