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In the reaction, 2FeCl_(3)+H_(2)Sto2FeCl_(2)+2HCl+S

In the reaction: 2Al(s)+6HCl(aq) to 2Al^(3+)(aq) +6Cl^(-)(aq)+3H_(2)(g)

In the reaction : 2Al_((s)) + 6 HCl_((aq)) rarr 2Al_((aq))^(3+) + 6 C bar(l)_((aq)) + 3H_(2(g))

In the reaction 2Al+N_(2)rarr2AlN, Al is

In the reaction, 2Ag + 2H_(2)SO_(4) rarrAg_(2)SO_(4) + 2H_(2)O + SO_(2) ,H_(2)SO_4acts as :

In the reaction2 SO_(3 (g)) , hArr 2 SO_(2 (g)) + O_(2 (g)) , SO_(3 (g)) is 50 % dissociated at 27^(@)C when the equilibrium pressure is 0.5 atm . Partial pressure of SO_(3 (g)) at Equilibrium is

In the reaction 2 KCIO_(3) rarr 2KCI+3 O_(2) the element which has been oxidised is …………….and the element which has been reduced is ……………

In the reactio, Fe(OH)_3(s) hArr Fe^(3+) (aq)+ 3OH^(-)(aq), if the concentration of OH^(-) ions is decreased by 1/4 times , then the equilibrium concentrationof Fe^(3+) will …………………………. .

In the reactant of KMnO_(4) with an oxalate in acidic medium. MnO_(4)^(-) is reduced to Mn^(2+) and C_(2)O_(4)^(2-) is oxidised to CO_(2). Hence, 50 ml of 0.02 M KMnO_(4) is equivalent to

In the radial probability distribution curve for the 2s orbital of the hydrogen atom, the minor maximum, the node and the major maximum occur at the following distances from the nucleus respectively

In the quantitative estimation of phosphorous by using magnesia misture, the formula used is :

In the quantitative estimation of phosphorous by using ammonium molybdate, the formula used is : where W is the mass of ammonium phospho molydbate and w is the mass of the compound.

In the quantitative estimation of oxygen by using I_(2)O_(5), the formula used is :

In the production of dihydrogen gas via water gas shift reaction CO(g)+H_(2)(g) underset("Catalyst")overset("heat")to CO_(2)(g)+H_(2)(g) CO_(2) gas is removed by scrubbing with solution of

In the production of ammonia to complete the reaction (increase production) what should be done ?

In the problem number 21, the number of mole of N_(2)O_(4) in 100 g of the mixture is:

In the present graph, the area of circle A and B are 25 unit and 20 unit respectively work done will be 5x, units, x= _____

In the presence of six ligand units the degeneracy of d-orbitals is lost and split into two sets. The pair of orbitals present in a single set are

In the presence of peroxide, hydrogen chloride and hydrogen iodide do not give anti-Markovnikov addition to alkenes because :

In the presence of peroxide, addition of HBr to propene takes place according to anti-Markovnikov's rule but peroxide effect is not seen in the case of HCl and HI. Explain.

In the presence of peroxide , HCl and HI do not give anti-Markownikoff's addition to alkenes because :

In the presence of peroxide addition of HBr to propene takes place according to Anti-Markovnikov's rule but peroxide effect is not seen in the case of HCl and HI. Explain.

In the presence of iron catalyst, benzene reacts with chlorine to form

In the presence of dry HCl, ethylene glycol reacts with acetaldehyde to yield

In the presence of dilute HCl, H_(2)S results in the precipitation of group II cations but not group IV cations during qualitative analysis. It is due to :

In the presence of aluminium ethoxide, aldehydes get converted into esters. The reaction is known as

In the presence of a peroxide, hydrogen chloride and hydrogen iodode do not undergo anti-Markovnikov's addition to alkenes because

In the preparation of sodium carbonate (Na_(2)CO_(3)) which of the following is used ?

In thepreparationof sodium carbonate, whichof thefollowingis used?

In the preparation of Iron from haematite (Fe_(2)O_(3)) by the reaction with carbon Fe_(2)O_(3)+CrarrFe+CO_(2) 94.5 kg of 10x% pure Iron could be produced from 120 kg of 90%pure Fe_(2)O_(3)? Find the value of x.

In the preparation of HNO_(3), we get NO gas by catalytic oxidation of ammonia. The moles of NO produced by the oxidation of two moles of NH_(3) will be

In the preparation of HNO_3we get NO gas by catalytic oxidation of ammonia. The moles of NO produced by the oxidation of two moles of NH_3will be

In the preparation of H_(2)O_(2) from Na_(2)O_(2) with ice cold sulphuric acid, Sodium sulphate is cystallised in the form of

In the preparation of H_2O_2 from BaO_2 ,phosphoric acid is preferred to sulphuric acid because

In the preparation of Grignard reagent from haloalkane, the metal used is

In the preparation of H_(2)O_(2) by auto oxidation method the starting substance is

In the preparation of CaO from CaCO_(3) using the equilibrium CaCO_(3) (s) hArr CaO (s) + CO_(2) (g) , K_(p)is expressed as : log K_(p) = 7. 282 - 8500/TFor the complete decomposition of CaCO_(3), the temperature in Celsius to be used is

In the preparation of alkene from alcohol using Al_2 O_3 which is effective factor?

In the preceeding problem, if[A^(+)]"and"[AB_(2)^(-)] "are" y "and" x respectively, under equilibrium produced by adding the substance AB to the solvents, then K_(1)//(K_(2) "is equal to"

In the preceding problem, if [A^+] and [AB_(2)^(-)] are y and x respectively under equilibrium produced by addings the substance AB to the solvents than K_(1)//K_(2) is equal to :

In the plot of Z (compressibility factor) vs P,Z attains a value of unity at a particular pressure. What does it signify?

In the periodic table, with the increase in atomic number, the metallic character of an element.....

In the phenomenon of osmosis through the semipermeable membrane

In the periodic table, the maximum chemical reactivity is at the extreme left (alkali metals) and extreams right (halongens). Which properties of these two groups are responsible for this ?

In the periodic table transition elements begin with

In the periodic table the element with Z = 24 is placed in the period.

In the periodic table, the elements are arranged in the periods following the

In the periodic table, inversion of atomic weights took place in this pair

In the penultimate shells, correct configur-ations of group 14 elements