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In both 1st and VII group of the periodic table, the following property increases with increase in atomic number:

In borax, the number of B - O - B links and B - OH bonds present are, respectively

In borax the number of B-O-B links and B-OH bond present are, respectively.

In borax bead test, which of the following compound is formed

In Borax bead test, metal oxides react with B_(2)O_(3) and form a coloured bead. This bead contains

In Bohr series of lines of hydrogen spectrum, the third line from the red end corresponds to which one of the following inter-orbit jumps of the electron for Bohr orbit in an atom of hydrogen?

In Bohr' model of the hydrogen atoms the ratio between the period of revolution on an electron in the orbit n = 1 to the period of revolution of the electron in the orbit n = 2 is

In body drug prontosil is cinverted into

In body center crystal arrangement of solid cube, how much percentage of edges is not occupied by atoms ?

In B.O.D. test, oxygen plays an important role to

In body centred cubic structure the space occupied is about

In blue solution of copper sulphate excess of KCNis added then solution becomes colourless due to the formation of :

In blood, the transport of oxygen from lungs to tissues is carried out by :

In blast furnace, which mixture on heating gives phosphorous ?

The process of heating of steel to temperature much below redness and then slowly cooling is called:

In blast furnace ........... is used for drying air

In blast furnace, iron oxide is reduced by

In blast furnace , the cup and cone arrangement is used :

In blast furnace, Fe_2O_3 is reduced by .......

In BF_(3), the B-F bond length is 1.30 A, when BF_(3) is allowed to be treated with Me_(3)N, it forms an adduct, Me_(3)NtoBF_(3), The bond length of B-F in the adduct is :

In blackand whitephotographytheh developedfilmis fixedby washingwith "______"

In Birkland and Eyde process, the temperature of electric arc is about?

In big cities, air pollution is due to

In between P_(4)O_(6) " and " P_(4)O_(10) Which of the following option is correct ? [State(T) for true and (F) false] (P) Both having cyclic structure. (Q)Both having same number of p pi-d pi bonds. (R ) Both having same P-O-P bond length. (S) Both having same hybridisation of P atoms.

In between the metals A and B, both form oxide but B also form nitride, when both burns in the air. So A and B are:

In bessemerization, the sulphide of copper is reduced by _________.

In beryl, each aluminium is surrounded by…………………… .

In Birkeland and Eyde process, the raw material used is :

In benzylic and vinylic halides the halogen bearing carbons are

In Berkeley -Hartley method, as osmosis starts , the level of a liquid in the capillary

In benzene the sp^3 orbitals of each carbon atoms constitute

In Benzene the 'C' atoms are:

In benzene molecule there are 3pi-bonds and:

In benzene, all the C-C bonds are of equal length because of:

In benzene, each carbon atom undergoes :

In benitonite (BaTiSi_(3)O_(9)) number of O atoms shared persilicate tetrahedron is …

in Belgian process for reduction of ZnO to Z reductant is

In Belgan process, for reduction of ZnO to Zn reductant is

In BCl_(3), the hybridisation state of Boron is :

In bcc unit, how much atoms are required per unit cell ?

In Bayer's process before digesting the one with concentrated Sodium hydroxide it must be

In Bayer's process. Al(OH)_(3) in heating gives

In basicity of aniline is weaker in comparison to that of methylamine due to

In basic medium , CrO_(4)^(2-)oxidize S_(2)O_(3)^(2-) to form SO_(4)^(2-) and itself changes to Cr(OH)_(4)^(-) How many ml of 0.154 M CrO_(4)^(2-)are required to react with 400 ml of 0.246 MS_(2)O_(3)^(2-)?

In basic medium the amount of Ni^(2+) in a solution can be estimated with the dimethylglyoxime reagent. The correct statement (s) about the reaction and the product is (are)

In basic medium the amountof Ni^(2+) in a solution can be estimated with the dimethylglyoxime reagent. The correct statemnt(s) about the reaction an the product is (are)

In Balz-Schmeiman'sreactionnreagentusedis