Solid State and Solutions

Copper metal crystallizes with a face centred cubic (fcc) lattice .It has a coordination number of

p-type silicon is formed by adding a minute amount of an element with

The flame colours of metals ions are due to

Which of the following statements about amorphous solids is incorrect

Which one of the following is a molecular crystal

The range of radius ratio (cationic to anionic) for an octahedral arrangement of ions in an ionic solid is

A particular solid is very hard and has a very high melting point. In solid state it is a non conductor and its melt is a conductor of electricity . Classify the solid

The number of atoms per unit cell of bcc structure is

Which of the following is not correct for ionic crystals

Coordination number of Zn in ZnS (zinc blende) is

The property of crystalline solid is not

Radius ratio of an ionic compound is 0.93. The structure of the above ionic compound is of

Crystalline solids are

The ability of a given substance to assume two or more crystalline structure is called

Packing efficiency of hcp structure is

Isotonic solution have the same

Azeotropic mixture of HCl and H₂O has

Diffusion of solvent through a semi permeable membrane is called

Ostwald’s dilution law is applicable to only

Which of the following 0.1M solution will show maximum boiling point

At 25⁰ C , the highest osmotic pressure is exhibited by 0.1 M solution of

According to Raoult’s law, the relative lowering of vapour pressure for a solution is equal to

From the colligative properties of solution which one is the best method for the determination of molecular weight of proteins and polymers

2.5 Litre of 1 M NaOH solution mixed with another 3 litre of 0.5 M NaOH solution. Then find out molarity of resultant solution

The van’t Hoff factor i for a compound which undergoes dissociation in one solvent and association in other solvent is respectively

Acetic acid shows twice of its expected molecular weight value experimentally .This is because of

The molarity of water is

Which of the following solutions boils at the highest temperature

HgI₂ reacts KI in aqueous solution to form K₂HgI₄.If small amount of HgI₂ is added to the aqueous KI solution, the

The molar fraction of nitrogen, in a mixture containing 70 grams nitrogen, 120 grams of oxygen and 44 grams of carbon dioxide is

Increase in boiling point of a sucrose solution is 0.1 K, then what is increases in boiling point of the same concentration of NaCl solution

When 10 g of a non-volatile solute is dissolved in 100 g of benzene , it raises boiling point by 1⁰ C then molecular mass of the solute is (Kb for benzene = 2.53 km⁻¹)

A solution containing 6 g urea per litre is isotonic with a solution containing

A 20 mass percent H₂SO₄ solution has density 1.15 g mL⁻¹.Molarity of the solution will be (molar mass of H₂SO₄ = 98 g mol⁻¹).

A molal solution is one that contains one mole of a solute in

The mixture of n-hexane and n-heptane is an example of

In which of the solutions containing following solutes, its normality is equal to its molarity

Vapour pressure of dilute aqueous solution of glucose is 750 mm of mercury at 373K. The mole fraction of solute is

Which one of the following liquid pairs will exhibit a positive deviation from Raoult’s law

Colligative properties of solution are those properties which depend on the

5 mL of N HCl, 20 mL of N/2 H₂SO₄ and 30 mL of N/3 HNO₃ are mixed together and volume made to one litre . The normality of the resulting solution is

The van’t Hoff factor for a solute that associates in solution is

Negative deviation from Raoult’s law is observed in which one of the following binary liquid mixtures

Which of the following gases has the lowest value of Henry’s law constant

20 g of a non-volatile solute is added to 500 g of solvent. Freezing point of solvent = 5.48⁰ C and solution = 4.47⁰ C . Kf = 1.93⁰ C/m. Molecular mass of the solute is

Which of the following 0.10 m aq solution will have the lowest freezing point

By increasing the temperature , the vapour pressure of a substance

The normality of solution containing 31.5 g of hydrated oxalic acid (H₂C₂O₄.2H₂O) in 1250 mL of solution is

How many grams of dibasic acid (mol.wt.200) should be present in 100 mL. of an aqueous solution to give decinormal strength

Which of the following will show a negative deviation from Raoult’s law