11.

In which of the following, homolytic bond fission takes place?

• Free radical chlorination of methane

• Addition of HBr to double bond

• Alkaline hydrolysis of ethyl chloride

• Nitration of benzene

Which of the following metallic oxide exhibit amphoteric nature?

• CaO

• Al₂O₃

• Na₂O

• BaO

Pick the correct statement among the following statement.

• Sodium dodecyl benzene sulphonate used in tooth paste ts a cationic detergent

• Non-ionic detergents is formed when polyethylene glycol reacts with adipic acid

• Cetyl trimethyl ammonium bromide is a popular cationic detergent used in air conditioner

• Sodium lauryl sulphate forms an insoluble scum with hard water

3ClO^-(aq) → ClO^- + 2Cl is an example of

• Oxidation reaction

• reduction reaction

• disproportionation reaction

• decomposition reaction

In the manufacture of hydrogen from water gas (CO + H₂), which of the following is correct statement?

• CO and H₂ are separated based on difference in their densities

• H₂ is removed by occlusion with Pd

• CO is oxidised to CO₂ with steam in the presence of a catalyst followed by absorption of CO₂ alkali

• Hydrogen is isolated by diffusion

Plaster of Paris is represented as

• CaSO₄·2H₂O

• CaSO₄

• CaSO₄·H₂O

• CaSO₄·$\frac{1}{2}{\mathrm{H}}_2\mathrm{O}$

Square planar complex of the type M_AXBL (where A, B,X and L) are unidenate ligands) shows following set of isomers.

• two cis and one trans

• two trans and one cis

• two cis and two trans

• three cis and one trans

By passing electric current, NaClO₃ is converted in to NaClO₄ according to the following equation

NaClO₃ + H₂O → NaClO₄ + H₂

How many moles of NaClO₄ will be formed when three Faradays of charges is passed through NaClO₃ ?

• 3.0

• 1.5

• 0.75

• 1.0

The pressure of real gases is less than that of ideal gas because of

• increases in the kinetic energy of the molecules

• increases in the number of collisions

• intermolecular attraction

• finite size of particles

In a face centred cubic arrangement of A and B atoms in which 'A' atoms are at the corners of the unit cell and 'B atoms are at the face centres. One of the 'A' atoms is missing from one corner in unit cell.The simplest formula of compounds is

• A₇B₈

• A₇B₃

• AB₃

• A₇B₂₄