The element whose oxidation state in its every compound is same:
1.Carbon
2.Fluorine
3.Hydrogen
4.Oxygen
Posted Date:-2021-03-07 09:31:28
 In the process of electrolysis reduction occurs at :
1.Cathode
2.Anode
3.Both of these
4.None of these
Posted Date:-2021-03-07 09:31:28
 Isotones are those which have:
1.Equal number of protons
2. Equal number of neutrons
3.Equal number of nucleons
4.None of these
Posted Date:-2021-03-07 09:31:28
 The average pH value of the milk is:
1.6.1
2.6.6
3.7.4
4.8
Posted Date:-2021-03-07 09:31:28
 The rusting of the iron is the example of:
1.Oxidation
2.Reduction
3.Polymerisation
4.Galvanization
Posted Date:-2021-03-07 09:31:28
 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
Posted Date:-2021-03-07 09:31:28
 The tendency to accept the electron is called:
1.Oxidation
2.Reduction
3.catylisation
4.Self induction
Posted Date:-2021-03-07 09:31:28
 What is the shape of the ethylene molecule? Â
1. Linear
2.Tetrahedral
3.Coplanar triangular
4.Hectohedral
Posted Date:-2021-03-07 09:31:28
By the emission of which isomers are produced:
1.Alpha-ray
2.Beta-ray
3.Gama-ray
4.X-ray
Posted Date:-2021-03-07 09:31:28
How many molecules have the methane?
1.Double bond
2.Triple bond
3.Single covalent bond
4.None of these
Posted Date:-2021-03-07 09:31:28
Hydrogen is the most fundamental component of all the acid, it is firstly stated by:
1.Arrhenius
2.Bronsted
3. Devi
4. Lori
Posted Date:-2021-03-07 09:31:28
In the endothermic reaction:
1.Heat is absorbed
2. Heat is evolved
3.Heat doesn't change
4.Temperature remains constant
Posted Date:-2021-03-07 09:31:28
In the exothermic reaction:
1.Heat is absorbed
2.Heat is evolved
3. Heat doesn't change
4.Temperature remains constant
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
In the process of electrolysis oxidation occurs at:
1.Cathode
2.Anode
3.Both of these
4.None of these
Posted Date:-2021-03-07 09:31:28
In which of the following chlorine has + 1 oxidation number?
1.Hypochlorous acid
2.Hydrochloric acid
3. Zinc chloride
4.Chlorine Â
Posted Date:-2021-03-07 09:31:28
In which of the following silver is not to be present?
1.Horn silver
2.German silver
3.Ruby silver
4.Lunar caustic
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
Mohr salt is:
1.Simple salt
2.Hybrid salt
3.Double salt
4.Complex salt
Posted Date:-2021-03-07 09:31:28
The acid is a substance which:
1.Accepts (gains) electron
2.Donates electrons
3.Provides (donates) proton
4.Donates OH- ion
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
The alkali is a substance which:
1. Provides (donates) proton
2.Accepts proton
3.Donates electron
4.Accepts electron pair
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
The average pH value of the human blood is:
1.5.4
2.6.2
3.7.4
4.8.7
Posted Date:-2021-03-07 09:31:28
The catalyst employed in the hydrogenation process of the oils is:
1.Fe
2.Ni
3.Mo
4.Pt
Posted Date:-2021-03-07 09:31:28
The catalyst is a substance through which the rates of chemical reactions are:
1.Increased
2.Decreased
3. Changed
4.None of these
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
The container employed in the process of electrolysis is called:
1.Ammeter
2.Voltmeter
3.Voltammeter
4.Calorimeter
Posted Date:-2021-03-07 09:31:28
The element chromium (Cr) has its oxidation number in K2Cr2O7:
1. + 6Â
2. - 2Â
3.+ 7Â
4.-7
Posted Date:-2021-03-07 09:31:28
The element which has same mass number but different atomic number is called:
1.Isotope
2.Isobar
3.Isoneutronic
4.Isoelectronic
Posted Date:-2021-03-07 09:31:28
The first time pH value measurement is done by:
1.Leviatiae
2.Pristley
3.Cauvendish
4.Sorensan
Posted Date:-2021-03-07 09:31:28
The gaseous law of diffusion was propounded by:
1.Boyle
2. Charles
3.Avogadro
4.Grahm
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
The hydrogen burning process is directly associated with:
1.Hydrolysis
2.Reduction
3.Oxidation
4.Hydrogenation Â
Posted Date:-2021-03-07 09:31:28
The iron container or vessel is galvanized by :
1.Chromium
2.Chromium
3. Aluminium
4. Nickel
Posted Date:-2021-03-07 09:31:28
The iso electronic of AI+3Â is:
1. CI-
2.AI
3.S-
4. F-
Posted Date:-2021-03-07 09:31:28
The milk is the example of:
1.Solution
2.Colloidal solution
3.Emulsion
4. Air-solution
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
The substance which makes the blue litmus paper red is :
1.Acid
2. Base
3.Alkali
4.Salt
Posted Date:-2021-03-07 09:31:28
The substance which makes the red litmus paper blue is:
1. Acid
2.Alkali
3.Salt
4. None of these
Posted Date:-2021-03-07 09:31:28
The tendency to donate the electron is called:
1.Oxidation
2.Reduction
3.catylisation
4.self-induction
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
What is the pH value of pure water?
1.6.4
2.6.6
3. 7
4.7.4
Posted Date:-2021-03-07 09:31:28
Which of the following compound is tetrahedral? Â
1. Ammonia
2.Carbon tetrachloride
3.Water
4.Acetylene
Posted Date:-2021-03-07 09:31:28
Which of the following is called philosopher's wool?
1.Zinc bromide
2.Zinc nitrate
3.Zinc oxide
4.Zinc chloride
Posted Date:-2021-03-07 09:31:28
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
Posted Date:-2021-03-07 09:31:28
Who is the inventor of the catalyst?
1.Berzeleous
2.Rutherford
3.Louis
4.Kosell
Posted Date:-2021-03-07 09:31:28