A sample of phosphorus trichloride (PCL3) contains 1.4 moles of the substance. how many atoms are there in atoms sample
The significant figures in 34.00 are
Assertion : Atoms can neither be created nor destroyed.
Reason : Under similar condition of temperature and pressure, equal volume..
Assertion : Isomorphous sustances form crystals of same shape and can grow in saturated solution of each other.
Reason : They have..
One part of an element A combines with two parts of another B. Six parts of the element C combine with four parts of the element b..
Assertion : 1.231 has three significant figures.
Reason : All numbers right to the decimal point are significant
The passege of current liberates H2 at cathode and CL2 at anode. The solution is
Given P=0.0030m , Q=2.4m , R=3000m , significant figures in P,Q and R are respectively
A sample was weighted using two different balances. the results were (1) 3.926 g (2) 4.0 g. How would the weight of the sample be ..
Assertion : A certain element X, forms three binary compounds with chlorine containing 59.68%, 68.95% and 74.75% chlorine respecti..
The addition of a polar solvent to a solid electrolyte results in
Sodium is made by the electrolysis of a molten mixture of about 40% NaCL and 60% CaCL2 because
On the electrolysis of aqueous solution of sodium sulphate, on cathode we get
In Br3O8 compound, oxidation number of bromine is
A mixture of ZnCL2 and PbCl2 cab be separated by
oxidation number of S in 2/4-
The prefix 10
During electrolysis, the species discharged at cathode are
Which of the following halogen can be purified by sublimation
Give the products available on the cathode and the anode respectively during the electrolysis of an aqueous solution of MgSO4 betw..
Use of electrolysis is
Which of the following aqueous solution will conduct an electric current quite well
During the electrolysis of an electrolyte, the number of ions produced, is directly proportional to the
Strong electrolyte are those which
Dimension of pressure are same as that of
Which pair of electrolyte could not be distinguished by the products of electrolysis using inert electrodes
The electrolyte used in Lechlanche cell is
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current t..
In the final answer of the expression
One fermi is
The unit J Pa-1 is equivalent to
9.65 C of electric current is passed through fused anhydrous MgCl2 . The magnesium metal thus obtained is completely converted int..
Two different electrolytic cells filled with molten Cu (NO3 )2 and molten Al(NO3 )3 respectively are connected in series. When ele..
In electrolysis of aqueous copper sulphate, the gas at anode and cathode is
One atmosphere is equal to
The product formed when an aqueous solution of NaBr is electrolysed in a cell having inert electrodes are
In the electrolysis of which solution, OH- ions are discharged in preference to Cl- ions
Electrolysis is a process in which the cations and anions of the electrolyte are
A mixture of sand and iodine can be separated by
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