1 molar solution of glucose in water contains weight of glucose
1.180g/dm3
2.170g/dm3
3.190g/dm3
4.195g/dm3
10ml of alcohol dissolve in 90ml of water unit of concentration used is
1.% w/w
2.% w/v
3.% v/v
4.% v/w
58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be
1.0.1 M
2.1 m
3.1 M
4.0.1 N
Among halogens the highest boiling point is of
1.Flrorine
2.Chlorine
3.Bromine
4.Iodine
An element having low value of ionization energy and low value of electron affinity is likely to belong to
1.Group IA
2.Group IB
3.Group VIIA
4.Group VIII
Beckmanns apparatus is used to measure
1.boiling point elevation
2.depression in freezing point
3.lowering of vapour pressure
4.lowering of osmotic pressure
Boiling point elevations can be measured by
1.Beckmanns method
2.Landsbergers method
3.Linds method
4.none of the above
Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called
1.saturated solution
2.solubility
3.unsaturated solution
4.super saturated solution
Concept of Triads was introduced by
1.Dobereiner
2.Newland
3.Mendeleev
4.Al-Razi
Elements in the same vertical group of the periodic table have same
1.Number of valence electrons
2.Atomic number
3.Atomic mass
4.Atomic volume
Elements with similar chemical properties appear in the
1.Same family
2.Same period
3.p block elements
4.Right upper corner
Every sample of matter with uniform properties and fixed composition is called
1.solute
2.solvent
3.solution
4.phase
Homogeneous mixture of two or more than two compounds is called
1.solution
2.compound
3.radical
4.ion
Hydration is a process in which
1.Molecules are surrounded by solvent molecules
2.Ions are surrounded by solvent molecules
3.Both ions and molecules are surrounded by solvent molecules
4.Both ions and molecules are surrounded by water molecules
If the volume of solution is equal to sum of volumes of its all components then the solution
1.will be an ideal solution
2.will be non-ideal solution
3.will show deviations from Raoults law
4.both b & c
In modern periodic table all the leements are arranged in ascending order of
1.Valency
2.Atomic mass
3.Atomic number
4.Valence electrons
In partially miscible liquids the two layers are
1.saturated solutions of each liquid
2.unsaturated solutions of each liquid
3.normal solution of each liquid
4.no layer formation takes place
Mixtures which distill over without change in composition called
1.zeotropic mixture
2.azeotropic mixture
3.amphoteric mixture
4.ideal solution
Noble gases are named so because they are
1.less reactive
2.Zero group elements
3.Having completely filled valence shell
4.All
Number of moles in 1 kg of solvent is called
1.normality
2.molarity
3.molality
4.mole fraction
Periodic table provides a basic framework to study elements with respect to their
1.Physical properties
2.Chemical properties
3.Properties of their compounds
4.All
ppm means
1.parts of solute in 1000 parts of solvent
2.parts of solvent in 1000 parts of solute
3.parts of solute in one million parts of solution
4.parts of solvent in one million parts of solute
Solubility of KCIO3 gives
1.continuous and falling solubility curve
2.discontinuous and falling solubility curve
3.continuous and rising solubility curve
4.discontinuous and rising solubility curve
Solution of Na2SO4 will be
1.basic
2.acidic
3.neutral
4.cannot be presicted without data
Solution with maximum concentration of solute at given temperature is called
1.Super saturated solution
2.unsaturated solution
3.saturated solution
4.dilute solution
The component of solution which is in smaller amount is called
1.solvent
2.solute
3.phase
4.ion
The compounds in which water molecules are added are called
1.Hydrated ions
2.double salts
3.hydrates
4.complexes
The determination of correct molecular weight from Raoults law is applicable to
1.a volatile solute in dilute solution
2.a non-electrolyte & non volatile solute in concentrated solution
3.a non-electrolyte & non volatile solute in concentrated solute
4.non volatile solute in a dilute solution
The longest period in the modern periodic table is
1.6th
2.7th
3.2nd and 3rd both
4.5th
The molal boiling point constant is the ration of the elevation of boiling point to
1.Molarity
2.Molality
3.More fraction of solvent
4.Mole fraction of solute
The relative lowering of vapour pressure is
1.equal to the mole fraction of solvent
2.equal to the mole fraction of solute
3.directly proportional to the mole fraction of solute
4.both b & c
The relative lowering of vapour pressure is directly proportional to molality if the solution is
1.concentrated
2.dilute
3.saturated solution
4.all of the above
The scientist who did not contribute in the construction of periodic table?
1.Al-Razi
2.Moseley
3.Dobereiner
4.Democritus
The solution which distils over with change in composition
1.ideal solution
2.zeotropic solution
3.azeotropic solution
4.non-ideal solution
Water molecules surrounds more around
1.ve ion
2.complex ion
3.?ve ion
4.neutral atom
Water of crystallization can be removed by
1.drying
2.heating
3.evaporation
4.All of the above
When common salt is dissolved in water?
1.Boiling point of water dicrease
2.Boiling point of water increase
3.Boiling point of water remains same
4.None of the above
Which element was not known when Mendeleev proposed his classification?
1.Hydrogen
2.Sodium
3.Copper
4.Germanium
Which has the minimum freezing point?
1.One Molal NaCI
2.One molal KCI solution
3.One molal CaCI2
4.One molal urea solution
Which of the following always increases on going from top to bottom in a group?
1.Metallic character
2.Electronegativity
3.Oxidizing power
4.Tendency to get reduced
Which of the following are the conditions of colligative properties
1.Non-electrolye solute
2.Non-volatile solute
3.Dilute solution
4.All of the above
Which of the following is an example of liquid in gas solution.
1.Opals
2.Dust particles in smoke
3.Paints
4.Fog
Which of the following is not a colligative property?
1.Lowering of vapour pressure
2.Freezing point
3.Osmotic pressure
4.Elevation of polling point
Which of the following substance do not show continuous solubility curve?
1.KCIO4
2.Na2SO4. 10H2O
3.K2Cr2O7
4.PbCl2
Which of the following unit of concertration is independent of temperature?
1.Molarity
2.Molality
3.Mole fraction
4.all
Which of the following will not form crystalline structure with opporitely charged ions
1.H+
2.H-
3.Mg2+
4.Ca2+
Which of the p-block elements are not representative elements?
1.Alkali metals (I-A)
2.Group-14 elements (IV-A)
3.Group-18 elements (VIII-A)
4.Halogens (VII-A)
Which one of the following salt does not hydrolyzed
1.Na2SO4
2.AlCl3
3.CuSO4
4.NH4Cl
Which set of elements is listed in order of increasing ionization energy?
1.Sb < As < S < P < Cl
2.Cl < Sb < P < As < S
3.As < Cl < P < S < Sb
4.Sb < As < Cl < S < P
Which statement is incorrect?
1.All the metals are good conductor of electricity.
2.All the metals are good conductor of heat
3.All the metals form positive ions
4.All the metals form acidic oxides