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Firdus Al Hikmat Fe-llmul Kemia was Witten by : Al jahiz, Al Beruni, Khalid bin Yazeed, Abu Mansoor
Law of definite proportion was present by : Dalton, Joseph, Lavoisier, Robert Boyle
Uranium was discovered by : Madam Curie, Henri Bequeral, Gold Stein, William Crooks
Number of element in the 4th period of modern periodic table is : 18, 8, 10, 21
Triads were made by : Dobereiner, Newlands, Mosley, Lothar Meyer
Bond which is formed by mutual sharing of element between atom is : Ionic bond, Covalent bond, Metallic bond, Coordinate covalent bond
The temperature of a liquid at which its vapour pressure become equal to atmospheric or external pressure is called : Melthing Point, Boiling Point, Freezing Point, Absolute temperature
Solubility of sodium chloride in 100 gram water is : 45.7 g, 35.7 g, 25.7 g, 15.7 g
In 1887 Ionic Theory was given by : Lewis, Arrhenius, Lowry, Kossel
One Faraday has number of Coulombs : 10000, 98400, 96500, 94200
Which one is called weak base : Fe(OH)3, NaOH, Ca(OH)2, KOH
During an endothermic reaction : The apparatus used is cooled down, The total energy of the increases, The total energy of product d
Empedocles believed that element present on earth are : 2, 3, 4, 5
The empirical formula of Oxalic acid is : CH2O2, CHO2, CHO, C2HO2
Proton number is indicated by : Z, Y, B, A
The number of period in periodic table are : 4, 5, 6, 7
In periodic table the number of element in the Zero group is : 5, 6, 7, 8
The covalent bond between different atoms is called : Non-Polar, Polar covalent bond, None of These, Coordinate covalent bond
On heating a liquid the evaporation : Decrease, Increase, No change, Decrease and increase
Binary Solution is made up of how many thing : 3, 4, 2, 1
First electric battery is invented by : Faraday, Dalton, Volta, Nicholson
The number of coulombs in a faraday is : 96500, 396500, 296500, 196500
The Ph of pure water is : 4, 5, 6, 7
The value of ? H in Exothermic reaction is : Negative, Positive, None of These, Both Negative & Positive
Who did work on eighteen (18) precious stones : Al-Razi, Al Beruni, Al-jahiz, Bu -Ali Sina
The atomic mass of sodium in amu is : 12, 21, 23, 27
The maximum number of electrons accommodated in L-shell : 2, 8, 18, 32
The horizontal rows in periodic table are called : Group, Periods, Block, All Of These
Which metal has the strongest metallic bond in it : Na, K, Mg, Li
Which compound is a sublimed compound : Sugar, Nacl, NH3, I2
Which compound is soluble in water by making hydrogen bond : Nacl, Kcl, NaNO3, Alcohol
Which compound is an electrolyte : Nacl solid, Nacl solution, Sugar solid, sugar solution
Which base has acidity three : Naoh , Ca(OH), Al(OH)3, KOH
Enthalpy of reaction depend upon : Physical state, Temperature, Physical state and temperature , None Of These
Zinc and sulphuric acid react with each other to form : Zncl, H2, Cl2, SO3
Which one is allotropic form of carbon : Carbon black, Charcoal, Coal, Graphite
Ozone is aform of oxygen : Allotropic, Isotropic, Important, All Of These
Sulphur reacts with conc.HNO3 to form a gas : SO2, SO3, NO2, NO
Reaction of bleach powder h2o2 produces a gas : Cl2, H2, H2o, O2
Limonite is an ore of : Fe, CU, Al, Cr
Which base is used in shaving cream : NaOH, Tallow, KOH, Sodium Silicate
Sulphur Acid was discovered by : Al jahiz, Berzelius, Jabar bin Haiyan, Aristotle
The molecular formula of benzene is C6H6 which of the following formula represent its empirical formula : CH, C2H3, C3H2, C2H2
When molecule of Nitrogen (14/7N) gas is bombarded with alpha particles which thing is obtained : Proton, Neutron, Electron, Neutron and electron
The element of which Block are known as inner transition elements : S - Block, P - Block, D - Block, F - Block
Which one of the following pair of atoms form a pure covalent bond : Sodium and chlorine , Hydrogen and chlorine, Hydrogen and oxygen, Chlorine and chlorine
Which of the following compounds show the process of sublimation : Naphthalene, Urea, Sodium chloride, Glucose
A solution which can dissolve further amount of a solute at a particular temperature is called : Saturated solution, un Saturated solution, Super Saturated solution, Saturated solution and super Sa
Which one of the following compound is weak electrolyte : H2CO4, CH3COOH, HCl, NaCl
What is the ph of neutral solution : 14, 7, 6, 8
The production of vegetable ghee from oil ia an example : Hydrogenation, Hydration, Dehydration, Dehydrogenation
Which of the following compound is obtained when carbon monoxide is mixed with chlorine in the presence of sunlight : CO2, COCl2, CCl4, COCl
How many electron are present in 2nd shell of nitrogen atom : 7, 6, 5, 4
Which of the following compounds is obtained when sulphus react with chlorine in the presence of heat : SCl, SCl2, S2Cl2, SCl4
Which of the following product is obtained when oxygen react withcarbon monoxide : COCl2, CO2, COCl, CCl4
Corrundum is an ore of : iron, Copper, Aluminium, Lead
Which of the following gives addition reaction : Methane, Ethane, Propene, None Of These
Chemical formula of stearic acid is : C17HCOOH, C17H35COOH, C15H29COOH, C15H31COOH