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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard Chemistry English Medium - p - Block Elements - II 1 Mark Book Back Question Paper and Answer Key 2022 - 2023

Published on: 01/09/2022

QB365 provides a detailed and simple solution for every Possible Book Back Questions in Class 12 Chemistry Subject - p - Block Elements - II, English Medium. It will help Students to get more practice questions, Students can Practice these question papers in addition to score best marks.

Download 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.

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Questions:

Multiple Choice Question

17 x 1 = 17

When copper is heated with conc HNO₃ it produces ________.

(a)

Cu(NO₃)₂, NO and NO₂

(b)

Cu(NO₃)₂ and N₂O

(c)

Cu(NO₃)₂ and NO₂

(d)

Cu(NO₃)₂ and NO

Among the following the correct order of acidity is ________.

(a)

HClO₂ < HClO < HClO₃ < HClO₄

(b)

HClO₄ < HClO₂ < HClO < HClO₃

(c)

HClO₃ < HClO₄ < HClO₂ < HClO

(d)

HClO < HClO₂ < HClO₃ < HClO₄

Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules?

(a)

Br₂ > I₂ > F₂ > Cl₂

(b)

F₂ > Cl₂ > Br₂ > l₂

(c)

I₂ > Br₂ > Cl₂ > F₂

(d)

Cl₂ > Br₂ > F₂ > I₂

Which of the following is strongest acid among all?

(a)

(b)

(c)

HBr

(d)

HCl

XeF₆ on complete hydrolysis produces________.

(a)

XeOF₄

(b)

XeO₂F₂

(c)

XeO₃

(d)

XeO₂

Most easily liquefiable gas is _______.

(a)

(b)

(c)

(d)

Which one of the following compounds is not formed?

(a)

XeOF₄

(b)

XeO₃

(c)

XeF₂

(d)

NeF₂

The correct order of the thermal stability of hydrogen halide is_______.

(a)

HI > HBr > HCl > HF

(b)

HF > HCl > HBr > HI

(c)

HCl > HF > HBr > HI

(d)

HI > HCl > HF > HBr

Among the following, which is the strongest oxidizing agent?

(a)

Cl₂

(b)

F₂

(c)

Br₂

(d)

l₂

10.

The molarity of given orthophosphoric acid solution is 2M. Its normality is _______.

(a)

(b)

(c)

(d)

none of these

11.

The basicity of pyrophosphorous acid ( H₄P₂O₅) is _______.

(a)

(b)

(c)

(d)

12.

P₄O₆ reacts with cold water to give _______.

(a)

H₃PO₃

(b)

H₄P₂O₇

(c)

HPO₃

(d)

H₃PO₄

13.

On hydrolysis, PCl₃ gives________.

(a)

H₃PO₃

(b)

PH₃

(c)

H₃PO₄

(d)

POCl₃

14.

Solid (A) reacts with strong aqueous NaOH liberating a foul smelling gas(B) which spontaneously burn in air giving smoky rings. A and B are respectively_________.

(a)

P₄(red) & PH₃

(b)

P₄(white) & PH₃

(c)

S₈ & H₂S

(d)

P₄(white) & H₂S

15.

An element belongs to group 15 and 3^rdperiod of the periodic table, its electronic configuration would be_______.

(a)

1s² 2s² 2p⁴