The element that does not show catenation among the following p-block elements is ________.

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

Which of the following d block element has half filled penultimate d sub shell as well as half filled valence sub shell?

The most common oxidation state of actinoids is _______.

The general electronic configuration of d-block elements can be written as ________.

Choose the correct statement.

Which among the following square planar complexes will exhibet geometrical isomerism?

The type of isomerism found in the complexes [Co(NO₂)(NH₃)₅]SO₄ and [Co(SO₄)(NH₃)₅] NO₂ _______.

Werner's theory was not able to explain_______ of coordination compounds.

Schottky defect in a crystal is observed when ______.

Schottky defects contains _______.

Ostwald's dilution law is applicable in the case of the solution of _______.

Henderson equation for a weak acid and its salt is _______.

The impurity present in the colloidal particle is _______.

Lower halogenated ethers can be converted into higher ethers by using _______ reagent.

Name some elements that occur as native elements.

Name the building block of zeolites. Why zeolites have high porosity?

Give the oxidation state of halogen in the following.
a) OF₂
b) O₂F₂
c) Cl₂O₃
d) I₂O₄

(i) Give correct order of boiling point of hydride of group 17.
(ii) Fluorine exhibits only -1 oxidation state whereas other halogens show +1, +3, +5 and +7 oxidation state also Explain.

Ni²⁺ is identified using alcoholic solution of dimethyl glyoxime. Write the structural formula for the rosy red precipitate of a complex formed in the reaction.

Give the names of two complexes which are used in medicines.

Give an example for the complexes possessing co-ordination number 8 and 7

What are the limitations of Ostwald's dilution law?

Write the Nernst equation.

Can we use nucelophiles such as NH₃,CH₃O ^- for the Nucleophilic substitution of alcohols

Explain why phenol does not undergo substitution of the -OH group like alcohol.

Write the tests to differentrate phenol and alcohol.

Explain Schotten - Baumann reaction.

Write short notes on the following
i. Hofmann’s bromide reaction
ii. Ammonolysis
iii. Gabriel phthalimide synthesis
iv. Schotten – Baumann reaction
v. Carbylamine reaction
vi. Mustard oil reaction
vii. Coupling reaction
viii. Diazotisation
ix. Gomberg reaction

\({ CH }_{ 3 }{ NO }_{ 2 }\underrightarrow { { Sn }_{ 2 }/HCl } A\xrightarrow [ CalcoholicKOH ]{ { CH }Cl_{ 3 } } B\underrightarrow { { H }_{ 2 }/P } \) Identify A,B and C.

Write the complete set of reactions occurring in the zone of reduction in the blast furnace in the metallurgy of iron.

Write a note on metallic nature of p-block elements.

Explain the commercial method of preparation of nitric acid.

An element A occupies group number 17 and period number 2 is the most electronegative element. Element A reacts with another element B) which occupies group number 17 and period number 4 to give a compound Compound C undergoes sp³d² hybridisation and has octahedral structure. Identify the elements a and B and the compound C. Write the reactions.

What are the general properties of f-block elements? (Lanthanides and Actinides)
(i) Electronic configuration
(ii) Oxidation state
(iii) Radii of tripositive ions.

Do transition elements form complex co-ordinate compounds?

Which is the last element in the series of the actinoids? Write the electronic configuration of this element comment on the possible oxidation state of this element.

Write the postulates of Werner’s theory.

Why tetrahedral complexes do not exhibit geometrical isomerism.

Derive an expression for Ostwald’s dilution law.

What is Henderson equation?

How is phenol prepared from
i) chloro benzene
ii) isopropyl benzene

Account for the following:
(a) Lower members of alcohols are soluble in water but higher members are not.
(b) Alcohols cannot be used as solvent for Grignard reagent.

How will you prepare phenol (i) From chloro benzene (ii) From benzene sulphonic acid?

How are the following compounds obtained from benzene diazonium chloride?
(i) phenol
(ii) ester
(iii) p-hydroxy azo benzene

Suggest a reason why HF is a weak acid, whereas binary acids of the all other halogens are strong acids.

What are the properties of inter halogen compounds?

Describe the variable oxidation state of 3d series elements.

Justify the following statement.
"Elements of the first transition series possess many properties different from those of heavier transition elements".

Give the postulates and limitation of Werner's theory of co-ordination compounds.

What is meant by stability of a co-ordination compound in solution? State the factors which govern stability of complexes.

Write note on impurity defect?

Derive Henderson - Hasselbalch equation

Derive an expression for Nernst equation.

Write the Nernst equation for the half cell Zn²⁺_(aq)/ Zn_(s)

Phenol is distilled with Zn dust followed by friedel – crafts alkylation with prophyl chloride to give a compound B, B on oxidation gives (c) Indentify A,B and C.

How would you distinguish between (i) methyl alcohol and ethyl alcohol (ii) benzyl alcohol and phenol, (iii) ethyl alcohol and benzyl alcohol?

An organic compound 'A' is a sodium salt of phenolic acid with molecular formula C₇H₅O₃Na. 'A' on heating with soda lime gives compound 'B' of molecular formula C₆H₆O. 'B' gives violet colour with neutral ferric chloride. 'B' on treatment with C₆H₅COCI in the presence of NaOH gives an ester 'C'. Identify 'A', 'B' and 'C'. Explain the reactions.

An organic compound A (C₇H₆O) forms a bisulphite. A when treated with alcoholic KCN forms B (C₁₄H₁₂O₂) and A on refluxing with sodium acetate and acetic anhydride forms an add C (C₉H_sO₂). Identify A, B and C. Explain the conversion of A to B and C.

Draw a flow chart to show classification of nitro compound giving examples for each type.