1 molar solution of glucose in water contains weight of glucose
1.180g/dm3
2.170g/dm3
3.190g/dm3
4.195g/dm3
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Among halogens the highest boiling point is of
1.Flrorine
2.Chlorine
3.Bromine
4.Iodine
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Boiling point elevations can be measured by
1.Beckmanns method
2.Landsbergers method
3.Linds method
4.none of the above
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Concept of Triads was introduced by
1.Dobereiner
2.Newland
3.Mendeleev
4.Al-Razi
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Elements with similar chemical properties appear in the
1.Same family
2.Same period
3.p block elements
4.Right upper corner
Posted Date:-2021-09-09 04:19:46
Every sample of matter with uniform properties and fixed composition is called
1.solute
2.solvent
3.solution
4.phase
Posted Date:-2021-09-09 04:19:46
Homogeneous mixture of two or more than two compounds is called
1.solution
2.compound
3.radical
4.ion
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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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
In modern periodic table all the leements are arranged in ascending order of
1.Valency
2.Atomic mass
3.Atomic number
4.Valence electrons
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Mixtures which distill over without change in composition called
1.zeotropic mixture
2.azeotropic mixture
3.amphoteric mixture
4.ideal solution
Posted Date:-2021-09-09 04:19:46
Noble gases are named so because they are
1.less reactive
2.Zero group elements
3.Having completely filled valence shell
4.All
Posted Date:-2021-09-09 04:19:46
Number of moles in 1 kg of solvent is called
1.normality
2.molarity
3.molality
4.mole fraction
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Solution of Na2SO4 will be
1.basic
2.acidic
3.neutral
4.cannot be presicted without data
Posted Date:-2021-09-09 04:19:46
Solution with maximum concentration of solute at given temperature is called
1.Super saturated solution
2.unsaturated solution
3.saturated solution
4.dilute solution
Posted Date:-2021-09-09 04:19:46
The component of solution which is in smaller amount is called
1.solvent
2.solute
3.phase
4.ion
Posted Date:-2021-09-09 04:19:46
The compounds in which water molecules are added are called
1.Hydrated ions
2.double salts
3.hydrates
4.complexes
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
The longest period in the modern periodic table is
1.6th
2.7th
3.2nd and 3rd both
4.5th
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
The scientist who did not contribute in the construction of periodic table?
1.Al-Razi
2.Moseley
3.Dobereiner
4.Democritus
Posted Date:-2021-09-09 04:19:46
The solution which distils over with change in composition
1.ideal solution
2.zeotropic solution
3.azeotropic solution
4.non-ideal solution
Posted Date:-2021-09-09 04:19:46
Water molecules surrounds more around
1.ve ion
2.complex ion
3.?ve ion
4.neutral atom
Posted Date:-2021-09-09 04:19:46
Water of crystallization can be removed by
1.drying
2.heating
3.evaporation
4.All of the above
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Which element was not known when Mendeleev proposed his classification?
1.Hydrogen
2.Sodium
3.Copper
4.Germanium
Posted Date:-2021-09-09 04:19:46
Which has the minimum freezing point?
1.One Molal NaCI
2.One molal KCI solution
3.One molal CaCI2
4.One molal urea solution
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Which of the following is an example of liquid in gas solution.
1.Opals
2.Dust particles in smoke
3.Paints
4.Fog
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
Which of the following substance do not show continuous solubility curve?
1.KCIO4
2.Na2SO4. 10H2O
3.K2Cr2O7
4.PbCl2
Posted Date:-2021-09-09 04:19:46
Which of the following unit of concertration is independent of temperature?
1.Molarity
2.Molality
3.Mole fraction
4.all
Posted Date:-2021-09-09 04:19:46
Which of the following will not form crystalline structure with opporitely charged ions
1.H+
2.H-
3.Mg2+
4.Ca2+
Posted Date:-2021-09-09 04:19:46
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)
Posted Date:-2021-09-09 04:19:46
Which one of the following salt does not hydrolyzed
1.Na2SO4
2.AlCl3
3.CuSO4
4.NH4Cl
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46
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
Posted Date:-2021-09-09 04:19:46