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question_answer1) How many of the following are polymeric in nature \[Be{{H}_{2}}\], \[Ca{{H}_{2}}\], \[Mg{{H}_{2}}\], \[BeC{{l}_{2}}\left( s \right)\], \[Al{{H}_{3}}\left( s \right)\], \[Ga{{H}_{3}}\], \[Ba{{H}_{2}}\], \[AlC{{l}_{3}}\]
question_answer2) How many of the following does not have coordination No. 6 or \[{{H}_{2}}O\] of crystallization in crystalline state \[LiCl\], \[BaC{{l}_{2}}\], \[CaC{{l}_{2}}\], \[NaCl\], \[AlC{{l}_{3}}\], \[CuS{{O}_{4}}\], \[FeS{{O}_{4}}\], \[MgC{{l}_{2}}\], \[N{{a}_{2}}S{{O}_{4}}\], Borax, \[MgS{{O}_{4}}\]
question_answer3) How many of the following from saline hydride \[Cr{{H}_{3}}\], \[NaH\], \[Zn{{H}_{2}}\], \[{{H}_{2}}S\], \[HI\], \[KH\], \[Ca{{H}_{2}}\], \[Cd{{H}_{2}}\], \[P{{H}_{3}}\], \[CsH\], \[Sc{{H}_{3}}\]
question_answer4) How many of the following compounds are peroxides \[Sn{{O}_{2}}\], \[Pb{{O}_{2}}\], \[Ba{{O}_{2}}\], \[N{{O}_{2}}\], \[{{H}_{2}}{{O}_{2}}\], \[K{{O}_{2}}\], \[N{{a}_{2}}{{O}_{2}}\], \[Sr{{O}_{2}}\], \[R{{b}_{2}}{{O}_{2}}\], \[Rb{{O}_{2}}\], \[Cs{{O}_{2}}\]
question_answer5) Find the number of nitrate which gives \[N{{O}_{2}}\] gas on heating from the following: Nitrogen dioxide is released on heating: \[N{{H}_{4}}N{{O}_{3}}\], \[KN{{O}_{3}}\], \[NaN{{O}_{3}}\], \[Pb{{\left( N{{O}_{3}} \right)}_{2}}\], \[AgN{{O}_{3}}\]
question_answer6) Which of the following substances are soluble in \[NaOH\] solution? (i) \[Sn{{\left( OH \right)}_{2}}\] (ii) \[Al{{\left( OH \right)}_{3}}\] (iii) \[Bi{{\left( OH \right)}_{3}}\] (iv) \[Pb{{\left( OH \right)}_{2}}\]
question_answer7) Calculate sum of bond order between same bonded atoms in Q and R compounds.
question_answer8) Benitoite is represented as \[BaTi\left[ S{{i}_{3}}{{O}_{n}} \right]\], the value of n is ??..
question_answer9) In the presence of excess \[{{S}_{2}}O_{3}^{2-}\], the coordination number of \[A{{g}^{+}}\] is ??..
question_answer10) The number of \[S-O-S\] and \[O-H\] links in \[{{H}_{2}}{{S}_{2}}{{O}_{7}}\] molecule are x and y respectively. Find\[x+y\].
question_answer11) In aqueous solution of \[AlC{{l}_{3}}\] the coordination number of \[A{{l}^{3+}}\] in water is ???
question_answer12) How many compounds among following have \[p\pi -d\pi \] bonding (i) \[N{{\left( C{{H}_{3}} \right)}_{3}}\] , (ii) \[N{{\left( Si{{H}_{3}} \right)}_{3}}\] , (iii) \[Si{{F}_{4}}\] , (iv) \[{{H}_{2}}S{{O}_{4}}\] , (v) \[SiC{{l}_{4}}\] , (vi) \[Xe{{O}_{4}}\]
question_answer13) In borax \[\left( N{{a}_{2}}{{B}_{4}}{{O}_{7}},10{{H}_{2}}O \right)\] the number of \[B-O-B\] bonds is ??..
question_answer14) How many geometrical isomers are possible for the complex ion, \[{{\left[ Cr\left( N{{H}_{3}} \right){{\left( OH \right)}_{2}}C{{l}_{3}} \right]}^{2-}}\] ?
question_answer15) Percentage of lead in lead pencil is :
question_answer16) The Brown Ring complex Compound is formulated as \[\left[ Fe{{\left( {{H}_{2}}O \right)}_{5}}\overset{+}{\mathop{N}}\,O \right]S{{O}_{4}}\] , The oxidation state of iron will be
question_answer17) \[Xe{{F}_{6}}\] on hydrolysis gives, How many of following compounds : (i) \[XeO{{F}_{4}}\] (ii) \[Xe{{O}_{2}}{{F}_{2}}\] (iii) \[Xe{{O}_{3}}\] (iv) \[Xe{{O}_{4}}\]
question_answer18) Aluminium becomes passive in (i) Conc. \[HN{{O}_{3}}\] (ii) \[{{H}_{2}}Cr{{O}_{4}}\] (iii) Conc. \[HCl{{O}_{4}}\] (iv) Conc. \[HCl\]
question_answer19) How many \[OH\] units directly linked to boron atoms in \[N{{a}_{2}}{{B}_{4}}{{O}_{7}}.10{{H}_{2}}O\] is :
question_answer20) Carbon has valency four in \[C{{H}_{4}}\]. Its valency in acetylene is :
question_answer21) Number of sigma bonds in \[{{P}_{4}}{{O}_{10}}\] is
question_answer22) The number of \[P-O-P\] bonds in cyclic metaphosphoric acid is :
question_answer23) Xeon hexafluoride reacts with silica to form a xenon compound X. The oxidation state of Xe in X is
question_answer24) Find the number of \[P-O\] bonds of identical length in hypophosphate ion.
question_answer25) The valency factor of \[Fe{{S}_{2}}\] in the following reaction is x. Find \[\left( x-0 \right)\] : \[Fe{{S}_{2}}+{{O}_{2}}\to F{{e}_{2}}{{O}_{3}}+S{{O}_{2}}\]
question_answer26) How many of the following undergoes self reduction : Cinnebar, Copper Pyrite, Cassetterite, Malachite, Galena, Dolomite, Bauxite, Siderite
question_answer27) How many of the following ore are exlracted by calcination process Calamine, Zinc Blende, Cinnebar, Copper pyrite, Malachite, Siderite, Haemetite, cupprite
question_answer28) How many of the following ore can be concentrated by leaching process \[PbS\], \[ZnS\] , \[A{{l}_{2}}{{O}_{3}}\] , \[A{{g}_{2}}S\] , \[F{{e}_{2}}{{O}_{3}}\], \[Sn{{O}_{2}}\] , \[CuFe{{S}_{2}}\]
question_answer29) How many of the following are carbonate ore Dolomite, Bauxite, Borax, Carnelite, Haematite, Cinnebar, Calamine, Quartz
question_answer30) How many of the following are oxide ore : pyrolusite, Beryl, Silver glance, zinc blende, Chromite, Galena, Malachite, Cryolite, Flourspar, carnelite cuprite
question_answer31) How many of the following is sulphide ore Ironpyrite, Cryolite, Anglesite, Cuprite, Glauber salt, Galena, Copper Pyrite, Argentite, Dolomite
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