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In S_(N)1, the rate of the reaction depends on the____

In SiO_(2), each silicon atom is surrounded by

In SI system, the units of coefficient of viscosity, eta are

In SF_(6) , the bond angle is …………………..

In SF_6 molecules

In SF_(4) molecule , the lone pair ofelectrons occupies an equatorial position rather than axial position in the overall trigonalbipyramidal arrangment . Why?

In SF_4 molecule, lone pair of electrons occupies equatorial position but not axial position why?

In separation by fractional crystallisation method, crystallisation of which of the following compounds occurs first ?

In self ionization of water the equilibrium is in which direction ?

In sample of hydrogen atomsin ground state, electron make transition from ground state to particular excited state, where path length isfour times of debroglie wavelenght . Electrons make back transitiontothe ground state prouducing all possible photons.

In saturated solution at definite temperature how the ions are arrange ?

In Schrodinger’s wave equation V indicates

In Rutherford's experiment, generally thin foils of heavy atoms like gold, platinum etc. have been used to be bombarded by the alpha-particles. If the thin foil of light atoms like aluminium etc. is used, what difference would be observed from the above results?

In Rutherford's gold foil experiment, a thin gold foil was bombarded with a stream of fast moving

In Rutherford's experiment, generally thin foil of heavy atoms, like gold, platinum etc. have been used to bombard the alpha-particles. If the thin foil of light atoms like aluminium is used, what difference would be observed from the above results?

In Rutherfordexperiment if light atomsusedinsteadof heavyelementsthanwhatchangeis observedin results ?

In reversible reaction, initilly the reaction proceed towards the _________ .

In a reaction vessel, 100 g H_(2) and 100 g Cl_(2) are mixed and suitable conditions are provided for the reaction: H_(2(g))+Cl_(2(g))to2HCl_((g))The amount of HCl formed (at 90% yield) will be

In reaction X_((s)) hArr 4Y_((g)) + 3Z_((g)) , If in this equilibrium do the partial pressure of Z double then partial pressure of Y is....

In a reaction vessel, 100 g H_(2) and 100 g Cl_(2) are mixed and suitable conditions are provided for the reaction: H_(2(g))+Cl_(2(g))to2HCl_((g)) The amount of HCl formed in this reaction (at 100% yield) will be

In reaction of alcohols with alkali metla, which of the following alcohol will react fastest?

In reaction H_2 + I_2 hArr 2HI, at equilibrium the concentration of products is double than reactants then what is the value of K_c ?

In qualtiative analysis when H_(2)S is passed through aqueous solution of salt acidified with dil. HCl, a black precipitate with dill. HNO_(3), it forms a solution of blue colour. Addition of excess of aqueus soltion of ammonia to this solution gives........ .

In Quartz watches, quartz is used

In qualitiveanalysis, anorganiccompound'A' is heatedDry CuO ,CO_(2)gasis liberatedandH_(2)Ois formed. Thesamecompound'A'whenheatedwithNa_(2) O_(2), followedbyboilingwithHNO_(3)and ammoniummolybdategivesyellowprecipitate. Basedon tehtests , theelementspresentin compound'A' are __________.

In qualitative analysis, to identily the HA group sulphides, HCl is added to salt solution before the addition of H_(2)S. Because

In qualitative analysis, to identify the IIA group sulphides, HCl is added to salt solution before the additions of H_2S . Because

In propyne …….. (i) sp hybridization in two carbon atoms. all carbon has sp hybridization. (iii) one carbon has sp^(3) hybridization. (iv) all C-H bonds are of sigma type.

In present of dil. H_(2)SO_4the equivalent mass of KMnO_4is

In presence of UV light, benzene reacts with chlorine forming _________

In presence of sodium ethoxide two molecules of ethyl acetate interact to form acetoacetic ester, this process is known as :

In presence of peroxides , the addition of HBr to propene occurs according to ______ rule and gives _____ as the major product but in absence of peroxides, addition occurs according ______ rule and gives _______as the major product.

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

In presence of nickel cyanide , acetylene gives

In presence of HCI(aq), K_(2)CR_(2)O_(7) oxidises tin (Sn)inot SN^(4+) ion. The amount of tin that will be oxidised by 1 mol K_(2)Cr_(2)O_(7)

In presence of HCl, H_(2)S results theprecipitationof group-2 radicals but not group-4 radicals during qualitative analysis. It is due to

In presence of excess of oxygen, sodium metal on immediate reaction produces ......

In preparation of Fe(OH)_3 from FeCl_3 first NH_4Cl is added and than NH_4OH is added ? Why ?

In preparation of borazene, diborane is heated with which compound ?

In potentiometric titrations, the end point of a titration is determined

In presence of peroxides , the addition of HBr to propene occurs according to ____ rule and gives _ as the major product but in absence of peroxides, addition occurs according rule and gives ___as the major product.