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In which of the following molecules, central atom is not sp^2 hybridized

In which type of liquid, an ionic solid will go into solution ?

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric ?

In what structural form does D-glucose exist predominantly?

In which of the following molecules both phenyl rings are coplanar?

In which of the following molecules are all the bonds are not equal?

In what rexampleions of the atmosphere, the temperature increasing with altitudes and in which rexampleions it decreases.

In what respect the reaction of N_(2) with (i)CaC_(2) (calcium carbide) & (ii)BaC_(2)(barium carbide) differ from each other.

In which of the following molecules are all the bonds not equal ?

In which of the following molecule, vacant orbital is not necessary for dimer formation :-

In what respect would any two naturally occuring amino acids differ from one another ?

In what respect do prontosil and salvarsan resemble. Is there any resemblance between azo dye and prontosil ? Explain.

In which of the following molecule all bond length are equal :-

In what respect do prontosil and salvarsan resemble. Is there may resemblance between azo dye and prontosil? Explain.

In what respect does a hydrosol resemble a solid aerosol ?

In which of the following molecule 2pi and (1)/(2)sigma bond is present ?

In what region of the electromagnetic spectrum would you look the spectral line resulting from the electronic transition from the tenth to the fifth electronic level in the hydrogen atoms ? (R_(H)=1.10xx10^(5) cm^(-1))

In what ratio should a 15% solution of acetic acid be mixed with a 3% solution of the acid to prepare a 10% solution (all percentage are mass/mass percentage) :

In which of the following molecular weight determination methods, sensitivity of the measurements decreases as the molecular weight of the solute increases ?

In what reaction of the following work is done by the system on the surroundings?

In which of the following molecular species sigma- dative bond is present?

In what ratio by mass, sulphur trioxide and nitrogen should be mixed so that the partial pressure exerted by each gas is same ?

In which of the following molecular species both sigma-dative and pi- dative bonds are present?

In what ratio by mass carbon monoxide and nitrgoengas should be mixed so that partial pressure exerted by each gas is same ?

In which of the following mixed aqueous solutions pH = pk_a at equilibrium? (1) 100 mL of 0.1 M CH_3 COOH + 100 mL of 0.1 M CH_3 COONa (2) 100 mL o f 0.1 M CH_3 COOH + 50 mL o f 0.1 M NaOH (3) 100 mL o f 0.1 M CH_3 COOH + 100 mL o f 0.1 M NaOH (4) 100 mL o f 0.1 M CH_3 COOH + 100 mL o f 0,1 M NH_3

In what mass of water must 25g of CuSO_(4)*5H_(2)O be dissolved to obtain an 8% solution of CuSO_(4) ?

In which of the following mixed aqueous solutions pH=kea at equilibrium-

In whichofthe followingminerals, aluminiumisnot present ?

In what manner will increases of pressure affect the following equation ? C(s) +H_2O(g) hArr CO(g) +H_2(g)

In which of the following minerals Al is not present ?

In what manner will increase of pressure affect the following equation? C_((s))+H_(2)O_((g))iffCO_((g))+H_(2(g))

In which of the following method of purification, metal is converted to its volatile compound which is decomposed to give pure metal ?

In which of the following method of purification, metal is converted to its volatile compound which is decomposed to give pure metal?

In what condition extraction of Mg is possible by MgO using carbon reduction method.

Inwhichofthefollowingmethodofpurification,metalisconvertedto itsvolatilecompoundwhich isdecomposedto givepuremetal ?

In water HCl dissolves in fomr of

In which of the following metal carbonyls the C-O bond order is lowest ?

In weak electrolyte solution, degree of ionization

In Which of the following metal to metal bond is present?

In which of the following metallurgy, no reducing agent is required from out side ?

In which of the following metal carbonyls, the C-O bond length is minimum ?

In vulcanized rubber.................are in form of cross links.

In which of the following lanthanides oxidation state +2 is most stable?

In Wacker oxidation of ethene, the product formed is

In vulcanization of rubber:

In vulcanisation of rubber

In voltaic cell , oxidation occurs on which electrode ?