The element whose oxidation state in its every compound is same:
1.Carbon
2.Fluorine
3.Hydrogen
4.Oxygen
 In the process of electrolysis reduction occurs at :
1.Cathode
2.Anode
3.Both of these
4.None of these
 Isotones are those which have:
1.Equal number of protons
2. Equal number of neutrons
3.Equal number of nucleons
4.None of these
 The average pH value of the milk is:
1.6.1
2.6.6
3.7.4
4.8
 The rusting of the iron is the example of:
1.Oxidation
2.Reduction
3.Polymerisation
4.Galvanization
 The smoke is the example of:
1.the solution of solid in the liquid
2.the solution of liquid in the liquid
3.the solution of solid in the gas
4.the solution of gas in the liquid
 The tendency to accept the electron is called:
1.Oxidation
2.Reduction
3.catylisation
4.Self induction
 What is the shape of the ethylene molecule? Â
1. Linear
2.Tetrahedral
3.Coplanar triangular
4.Hectohedral
By the emission of which isomers are produced:
1.Alpha-ray
2.Beta-ray
3.Gama-ray
4.X-ray
How many molecules have the methane?
1.Double bond
2.Triple bond
3.Single covalent bond
4.None of these
Hydrogen is the most fundamental component of all the acid, it is firstly stated by:
1.Arrhenius
2.Bronsted
3. Devi
4. Lori
In the endothermic reaction:
1.Heat is absorbed
2. Heat is evolved
3.Heat doesn't change
4.Temperature remains constant
In the exothermic reaction:
1.Heat is absorbed
2.Heat is evolved
3. Heat doesn't change
4.Temperature remains constant
In the galvanic cell, the process takes place is:
1.Transformation of the electrical energy into the chemical energy
2.Transformation of the chemical energy into the electrical energy
3.Transformation of light energy into the electrical energy
4.Transformation of electrical energy into the light energy
In the process of electrolysis oxidation occurs at:
1.Cathode
2.Anode
3.Both of these
4.None of these
In which of the following chlorine has + 1 oxidation number?
1.Hypochlorous acid
2.Hydrochloric acid
3. Zinc chloride
4.Chlorine Â
In which of the following silver is not to be present?
1.Horn silver
2.German silver
3.Ruby silver
4.Lunar caustic
Which isotope is used through the radioactive age estimation technique to obtain (determine) the age of rocks?
1.Uranium isotope
2. Plutonium isotope
3.Thorium isotope
4.Carbon isotope
Mohr salt is:
1.Simple salt
2.Hybrid salt
3.Double salt
4.Complex salt
The acid is a substance which:
1.Accepts (gains) electron
2.Donates electrons
3.Provides (donates) proton
4.Donates OH- ion
The air is the example of:
1.the solution of solid in the gas
2. the solution of gas in the gas
3.the solution of liquid in the gas
4.the solution of liquid in the solid
The alkali is a substance which:
1. Provides (donates) proton
2.Accepts proton
3.Donates electron
4.Accepts electron pair
The alloys are:
1.the solution of solid in the solid
2.the solution of solid in the liquid
3. the solution of gas in the liquid
4.the solution of gas in the gas
The average pH value of the human blood is:
1.5.4
2.6.2
3.7.4
4.8.7
The catalyst employed in the hydrogenation process of the oils is:
1.Fe
2.Ni
3.Mo
4.Pt
The catalyst is a substance through which the rates of chemical reactions are:
1.Increased
2.Decreased
3. Changed
4.None of these
The chemical reactions which occur in one direction (from left to right) are called:
1.Reversible reaction
2.Irreversible reactions
3.Endothermic reactions
4.Exothermic reactions
The container employed in the process of electrolysis is called:
1.Ammeter
2.Voltmeter
3.Voltammeter
4.Calorimeter
The element chromium (Cr) has its oxidation number in K2Cr2O7:
1. + 6Â
2. - 2Â
3.+ 7Â
4.-7
The element which has same mass number but different atomic number is called:
1.Isotope
2.Isobar
3.Isoneutronic
4.Isoelectronic
The first time pH value measurement is done by:
1.Leviatiae
2.Pristley
3.Cauvendish
4.Sorensan
The gaseous law of diffusion was propounded by:
1.Boyle
2. Charles
3.Avogadro
4.Grahm
The higher boiling point of the water occurs due to:
1.Its more specific heat
2.Its more value of the dielectric constant
3. Less molecular disassociation in H20
4.Presence of hydrogen bonding among the molecules of H20
The hydrogen burning process is directly associated with:
1.Hydrolysis
2.Reduction
3.Oxidation
4.Hydrogenation Â
The iron container or vessel is galvanized by :
1.Chromium
2.Chromium
3. Aluminium
4. Nickel
The iso electronic of AI+3Â is:
1. CI-
2.AI
3.S-
4. F-
The milk is the example of:
1.Solution
2.Colloidal solution
3.Emulsion
4. Air-solution
The pH value of any solution is 6 then the hydrogen ion concentration in the solution would be:
1.10-6M
2.10-10M
3.1010M
4.106M
The process of corrosiondoesn’t take place in which of the following metals, when these metals are left free in the air:
1.Iron
2.Copper
3.Gold
4.Silver
The radio isotope used to control the disease like blood cancer (Leukaemia) is:
1.Phosphorus-32
2.Cobalt-60
3. Iodine-131
4.Sodium-24
The substance which makes the blue litmus paper red is :
1.Acid
2. Base
3.Alkali
4.Salt
The substance which makes the red litmus paper blue is:
1. Acid
2.Alkali
3.Salt
4. None of these
The tendency to donate the electron is called:
1.Oxidation
2.Reduction
3.catylisation
4.self-induction
Through the fused sodium chloride, electric current can pass out due to the presence of:
1.Free electron
2.Free ion
3.Free molecule
4.The atoms of sodium and chlorine
What is the pH value of pure water?
1.6.4
2.6.6
3. 7
4.7.4
Which of the following compound is tetrahedral? Â
1. Ammonia
2.Carbon tetrachloride
3.Water
4.Acetylene
Which of the following is called philosopher's wool?
1.Zinc bromide
2.Zinc nitrate
3.Zinc oxide
4.Zinc chloride
Which of the following is utilized in the form of electrolyte of the dry cell (battery)?
1.Ammonium chloride and zinc chloride
2.Sodium chloride and calcium chloride
3.Magnesium chloride and zinc chloride
4. Ammonium chloride and calcium chloride
Who is the inventor of the catalyst?
1.Berzeleous
2.Rutherford
3.Louis
4.Kosell