1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

Q. 64.7( 25 Votes )

Write balanced chemical equations for the following processes:

(i) XeF₂ undergoes hydrolysis.

(ii) MnO₂ is heated with conc. HCl.

OR

Arrange the following in order of property indicated for each set:

(i) H₂O, H₂S, H₂Se, H₂Te – increasing acidic character

(ii) HF, HCl, HBr, HI – decreasing bond enthalpy

Class 12th Chemistry - Board Papers All India - 2019 BVM-1

Answer :

(i) Here is the balanced chemical equation when XeF₂ undergoes hydrolysis,

Xenon difluoride reacts with water to form Xenon, Hydrogen fluoride and oxygen.

(ii) Here is the balanced chemical equation when MnO₂ is heated with conc. HCl

Chlorine Gas(Cl), Manganese(II) Chloride and(MnCl₂) and Water(H₂O) is obtained when Manganese(IV) Oxide reacts with conc. HCl.

OR

(i) Increasing acidic character is

In binary acids, as the size of the element increases the bond becomes weaker and hence become a better acid due to easy release of H⁺ ion.

(II) Decreasing bond enthalpy is

Because as the size of halogen decreases the effective nuclear charge increases and hence, the bond enthalpy increases.

Rate this question :

How useful is this solution?

We strive to provide quality solutions. Please rate us to serve you better.

PREVIOUSWhat is the basic structural difference between glucose and fructose?ORWrite the products obtained after hydrolysis of lactose.NEXTState Raoult’s law for a solution containing volatile components. Write two characteristics of the solution which obeys Raoult’s law at all concentrations.

Related Videos

All About Faraday's law55 mins

Know all about Infertility39 mins

Revision Class | All Formulas of Electrodynamics63 mins

Get to know all about Immune SystemFREE Class

Know all about Colligative Properties50 mins

Know All About Types of Relations53 mins

Conic Section Part 164 mins

Exemplar Special Quiz | Reproductive Health Part 1FREE Class

Exemplar Special Quiz | Human Reproduction Part 1FREE Class

Exemplar Special Quiz | Sexual Reproduction in flowering Plants Part 1FREE Class

Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts

Dedicated counsellor for each student

24X7 Doubt Resolution

Daily Report Card

Detailed Performance Evaluation

view all courses

RELATED QUESTIONS :

Carbohydrates are essential for life in both plants and animals. Name the carbohydrates that are used as storage molecules in plants and animals, also name the carbohydrate which is present in wood or in the fibre of cotton cloth.

Chemistry - Exemplar

On the basis of which evidences D-glucose was assigned the following structure?

Chemistry - Exemplar

Label the glucose and fructose units in the following disaccharide and identify anomeric carbon atoms in these units. Is the sugar reducing in nature? Explain.

Chemistry - Exemplar

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : β-glycosidic linkage is present in maltose,

Reason : Maltose is composed of two glucose units in which C–1 of one glucose unit is linked to C–4 of another glucose unit.

Chemistry - Exemplar

Note : In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

Assertion : Deoxyribose, C₅H₁₀O₄ is not a carbohydrate.

Reason : Carbohydrates are hydrates of carbon so compounds which follow Cx(H₂O)y formula are carbohydrates.

Chemistry - Exemplar

Write the reactions of D-glucose which can’t be explained by its open-chain structure. How can cyclic structure of glucose explain these reactions?

Chemistry - Exemplar

Three structures are given below in which two glucose units are linked. Which of these linkages between glucose units are between C1 and C4 and which linkages are between C1 and C6.Is the compound (I) reducing in nature? Explain.

Chemistry - Exemplar