Match the pair of ores given in column-I with type(s) of ores given in column-II. `{:("Column-I","Column-II"),((A)"Limonite, Cuprite",(p)"Sulphate ore

Monjur Alahi

Match the pair of ores given in column-I with type(s) of ores given in column-II.
`{:("Column-I","Column-II"),((A)"Limonite, Cuprite",(p)"Sulphate ore"),((B)"Calamine, Cerussite",(q)"Carbonate ore"),(( C)"Pyragyrite , Zinc blende",(r)"Oxide ore"),((D) "Anglesite,Langbeinite",(s)"Sulphide ore"),(" " ,(t)"Halide ore"):}`.


0 like 0 dislike
1 views
Share with your friends

1 Answers

Salim Ahmed Kawsar

Call

Correct Answer - A`to`r ; B`to`q ; C`to` s ; D`to`p
(A)Limonite is `Fe_2O_3` and Cuprite is `Cu_2O`
(B) Calamine is `ZnCO_3` and Cerussite is `PbCO_3`.
(C ) Pyragyrite of `Ag_3SbS_3` and Zinc blende is ZnS.
(D)Anglesite is `PbSO_4` and Langbeinite is `K_2Mg_2(SO_4)_3`

0 like 0 dislike
1 views
Talk Doctor Online in Bissoy App
Match the column-I with Column - II Note that column- I may have more than one matching options in column-II. `{:(,"Column-I" , "Column-II",),(("A"),"

Correct Answer - `(A) to S (B) to P,R (C) to P,S (D) to P,R` For all reversible process `DeltaS_("total")=0` For irreversible process `DeltaS_("total") gt 0` (a) `" "DeltaS=nC_(v)ln .((T_(2))/(T_(1))) +nR...

2 Answers 1 views
Match the increasing orders given in column I with the property given in column II `{:("Column-I","Column-II"),((A)Na^+ ltF^(-) ltO^(2-)ltN^(3-),(p)"E

Correct Answer - A-r ; B-q,r ; C-s ; D-p,q,s,t (A)For isoelectronic species, the ionic size decrease with increase in nuclear charge (B)Number of atomic shells increases, ionic size increases. (C...

2 Answers 1 views
Match the pair of complexes given in Column-I and the characteristic given in column-II. `{:("Column-I","Column-II"),((A)(NH_4)_2[NiCl_4] and (NH_(4))

Correct Answer - A-p,q,r ; B-q,s ; C-q,r ; D-q,r (A)`Ni^(2+)` ions in both complexes have same primary valencies, i.e, +2 Same number of ions i.e. 3 and so have same...

2 Answers 1 views
Match the reactions given in column(I) with the appropriate method(s) listed in column (II). `{:("Column-I","Column-II"),((A)4 Au+8 NaCN+ 2 H_2O+O_2("

Correct Answer - A`to`p,t ; B`to`p,t ; C`to` q ; D`to`s (A)Gold dissolves in NaCN solution forming a soluble complex leaving behind impurities is called leaching process. Hence the extraction of...

2 Answers 1 views
Match the order given in column (I) with the property(les) in column (II). `{:("Column I","Column II"),((A)Rb_2CO_3gtK_2CO_3gtNa_2CO_3,(p)"Solubility

Correct Answer - A-p,q ; B-q ; C-r ; D-s,t (A)Down the group the decrease in the lattice energy is more as compared to that of hydration energy with increase in...

2 Answers 1 views
Match the particular given in column (I) with the compound in column (II) `{:("Column I","Column II"),((A)"Solvary process",(p)NaCl),((B)"Evolve" CO_2

Correct Answer - A-p,r,s,t ; B-r ; C-p ; D-q `NH_3+H_2O+CO_2 to NH_4HCO_3` `NH_4HCO_3 + H_2O to NH_4OH + H_2CO_3` `2NaHCO_3 overset(250^@C)to Na_2CO_3 + H_2O+CO_2` `NH_4HCO_3 + NaCl to NaHCO_3+NH_4Cl` `CaO+H_2OtoCa(OH)_2`...

2 Answers 1 views
Match each of the reactions given in column I with the corresponding products given in column II. `{:("Column I","Column II"),((A)Sn+conc.HNO_3,(p)"NO

Correct Answer - A-p ; B-r,s ; C-q,t ; D-p,t (A)3Sn+`4HNO_3`(concssentrated ) + (x-2)`H_2Oto 4NO uarr + 3SnO_2 xH_2O`(metastrannic acid) (vogal) (B)`4Sn+10^(+)+NO_3^(-)`(dilute)`to4Sn^(2+)+NH_4^(+)+3H_2O` (vogel) (C )`Ag+2HNO_3` (concentrated) `toAgNO_3+NO_2+H_2O` (D)`3Ag+4HNO_3`(dilute) `to 3AgNO_3 +...

2 Answers 1 views
Match the compounds given in Column I with the characteristic of products given in Column II. `{:("Column I","Column II"),((A)K_2MnO_4,(p)"Transition

Correct Answer - A`to`p,r ; B`to`q,r ; C`to`p,q,s ; D`to`p,q,s (A)`overset(+6)(MnO_4^(2-)) , 2MnO_2 ("pyrolusite")+4KOH+O_2to2K_2MnO_4+2H_2O` (B)`overset(+7)(MnO_4^-)to` colour due to charge transfer. `2MnO_2("pyrolusite")+4KOH+O_2 to 2K_2MnO_4 + 2H_2O` `MnO_4^(2-)overset("electrolytic oxidation")to MnO_4^(-)+e^-` (C )`overset(+6)Cr_2O_7^(2-)`, Colour...

2 Answers 1 views
Match the complexes listed in column-I with characteristic type of isomerism listed in column-II `{:("Column I","Column II"),((A)CoCl_3. 5NH_3. H_2O,(

Correct Answer - A-p,s ; B-r ; C-p,q,s ; D-p,s,t (A)`overset(III)([Co(NH_3)_5Cl])Cl_2. H_2O and overset(III)([Co(NH_3)_5H_2O])Cl_3`-hydrate isomerism. In later form all (i.e. six) secondary valences of metal are satisfied by neutral molecules. (B)`overset(III)([Co(NH_3)_5Br])SO_4...

2 Answers 1 views
Match column `I` with column `II` for housefly classification and select the correct option using the codes given below `{:(,"Column I",,"Column II"),

Correct Answer - A Classification of housefly ltbvrgt A. Family - Muscidae B. Order - Diptera C. Class - Insecta D. Phylum - Arthropoda Short Trick The question can be easily...

2 Answers 1 views
X