Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Complete the following reactions:

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SOLUTION :
Discussion
2.

Complete the following reactions:

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SOLUTION :
Discussion
3.

Complete the following reactions:

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SOLUTION :`(#GRB_ORG_CHM_P2_C13_E01_013_S01.png" WIDTH="80%">
Discussion
4.

Complete the following reactions:

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SOLUTION :
Discussion
5.

Complete the following reactions:

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SOLUTION :
Discussion
6.

Complete the following reactions:

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SOLUTION :
Discussion
7.

Complete the following reactions:

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SOLUTION :
Discussion
8.

Complete the following reactions:

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SOLUTION :
Discussion
9.

Complete the following reactions. 2HCHO + NaOHrarr

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SOLUTION :`2HCHO+NaOH RARR CH_3OH+HCOONa`
Discussion
10.

Complete the following reactions. 2CH_3CHO overset(NaOH)rarr

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SOLUTION :`2CH_3CHO OVERSET(NAOH)RARR CH_3CH(OH)CH_2OH`
Discussion
11.

Complete the following reactions:

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Solution :`C_(6)H_(5)-CH(OH)-CN`
Discussion
12.

Complete the following reactions:

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SOLUTION :
Discussion
13.

Complete the following reactions. 1. NaCl+MnO_(2)+H_(2)SO_(4)rarr 2. NaNO_(2)+Hclrarr 3. IO_(3)^(-)+I^(-)+H^(+)rarr 4. I_(2)+S_(2)O_(3)^(2-)rarr 5. P_(4)+NaOH+H_(2)Orarr 6. AgNO_(3)+PH_(3)rarr 7. Mg+HNO_(3)rarr 8. KClO_(3)overset(Delta)rarr 9. Cu+"Hot Conc." H_(2)SO_(4)rarr 10. Sb+Cl_(2)rarr 11. HBr +H_(2)SO_(4)rarr 12. XeF_(6)+H_(2)Orarr 13. XeO_(6)^(4-)+Mn^(2+)+H^(+)rarr 14. XeOF_(4)+SiO_(2)rarr 15. Xe+F_(2)overset(Ni//"200 atm") underset(400^(@)C)rarr

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SOLUTION :(1) `4NaCl+MnO_(2)+4H_(2)SO_(4)rarrCl_(2)+MnCl_(2)+4NaHSO_(4)+2H_(2)O`
(2) `NaNO_(2)+Hclrarr NaCl+HNO_(2)`
(3) `IO_(3)^(-)+5I^(-)+6H^(+)rarr 3I_(2)+3H_(2)O`
(4) `I_(2)+2S_(2)O_(3)^(2-)+2I^(-)`
(5) `P_(4)+3NAOH+3H_(2)Orarr 3NaH_(2)PO_(2)+PH_(3)uarr`
(6) `3AgNO_(3)+PH_(3)rarr Ag_(3)P+3HNO_(3)`
(7) `4Mg+10HNO_(3)rarr 4Mg(NO_(3))_(2)+NH_(4)NO_(3)+3H_(2)O`
(8) `4Mg+10HNO_(3)rarr 4Mg(NO_(3))_(2)+NH_(4)NO_(3)+3H_(2)O`
(9) `2KClO_(3)overset(Delta)underset(MnO_(2))rarr 2KCl+3O_(2)`
(10) `Cu+"Hot Conc."2H_(2)SO_(4)rarr CuSO_(4)+2H_(2)O+SO_(2)uarr`
(10) `2Sb+3Cl_(2)rarr 2SbCl_(3)`
(11) `2HBr+H_(2)SO_(4)rarr 2SO_(2)+2H_(2)O+Br_(2)`
(12) `XeF_(6)+3H_(2)Orarr XeO_(3)+6HF`
(13) `5XeP_(6)^(4-)+2Mn^(+)+14H^(+)rarr2MnO_(4)^(-)+5XeO_(3)+7H_(2)O`
(14) `2XeOF_(4)+SiO_(2)rarr 2XeO_(2)F_(2)+SiF_(4)`
(15)`Xe+3F_(2)overset(Ni//200 atm)underset(400^(@)C)rarr XeF_(6)`
Discussion
14.

Complete the following reactions . NaCl+MnO_(2)+H_(2)SO_(4) rarr

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<P>

SOLUTION :1. `4NaCl +MnO_(2)+4H_(2)SO_(4) to Cl_(2)+MnCl_(2) +4NaHSO_(4)+2H_(2)O`
2. `I_(2)+2S_(2)O_(3)^(2-) to S_(4)O_(6)^(2-) +2I^(-)`
3. `P_(4)+3NaOH+3H_(2)O to 3NaH_(2)PO_(2)+PH_(3)uarr`
Discussion
15.

Complete the following reactions :

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SOLUTION :
Discussion
16.

Complete the following reactions :

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`C_(6)H_(5)-COOH overset((i) CH_(3)Li("excess"))underset((ii) H_(3)overset(OPLUS)O)to`
`CH_(3)-COOH overset(MnO//300^(@)C)to`
`CH_(3)-CH_(2)-overset(O)overset(||)C-Cl overset(H_(2)//Pd-BaSO_(4))to`
`H_(3)C-underset(CH_(3))underset(|)CH-COOH overset("SOCl"_(2))to (A) overset((CH_(3))_(2)CULI)to`

Solution :(A) `C_(6)H_(5)-COOH overset((i)CH_(3)Li("excess"))underset((ii)H_(3)overset(oplus)O)to C_(6)H_(5)COCH_(3)`
(B) `2CH_(3)-COOH overset(MnO//300^(@)C)to CH_(3)-overset(O)overset(||)C-CH_(3)+CO_(2)+H_(2)O`
( C ) `CH_(3)-CH_(2)-overset(O)overset(||)C-Cl overset(H_(2)//Pd-"BaSO"_(4))to CH_(3)CH_(2)CHO`
(D)`H_(3)C-underset(CH_(3))underset(|)CH-COOH overset("SOCl"_(2))to (A) overset((CH_(3))_(2)"CuLi")to H_(3)C-underset(CH_(3))underset(|)CH-overset(O)overset(||)C-CH_(3)`
Hence, (A) is the correct answer.
Discussion
17.

Complete the following reactions : .

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SOLUTION :.
Discussion
18.

Complete the following reaction,(i) CH_(3)CH_(2)OH overset( Cu 300^@ C)(to) (ii) R-COOH to RCH_(2)OH. Name the reagent used in the conversion?

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Solution :`CH_(3)CH_(2)OH overset( cu 300^@ C)(to) CH_(3)CHO + H_(2)`
(ii) `R-COOH to RCH_(2)OH`
The reagent USED is `LiAlH_(4)` in the PRESENCE of Tetra hydro furan (THF).
Discussion
19.

Complete the following reaction.CH_3CONH_2+NaOH+Br_2rarr

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SOLUTION :`CH_3CONH_2+NaOH+Br_2rarrCH_3NH_2+Na_2CO_3+2NaBr+2H_2O`
Discussion
20.

Complete the following reaction:CH_3CHO+C_6H_5NHNH_2rarr

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SOLUTION :`CH_3CHO+C_6H_5NHNH_2rarr CH_3-CH=N-NHC_6H_5+H_2O`
Discussion
21.

Complete the following reactionas and identify the products formed. (i)BCl_(3)+NH_(4)Clunderset(C_(6)H_(5)Cl)overset(140^(@)C)to(A)overset(NaBH_(4))to(B) (b)BCl_(3)+H_(2)+C_("fibre")overset(1700-1800^(@)C)to"product(s)"

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Solution :(i)`3BCl_(3)+3NH_(4)Cl UNDERSET(C_(6)H_(5)Cl)OVERSET(140^(@)C)to B_(3)N_(3)H_(3)Cl_(3) underset(NaBH_(4)) to B_(3)N_(3)H_(6)`(borazine)
(b)`4BCl_(3)+6H_(2)+C_("fibre")overset(1700-1800^(@)C)to B_(4)C_(("fibre"))+12 HCl`
Discussion
22.

Complete the following reaction:(CH_3CH_2OH+SOCl_2 rarr……..+…………..+HCl.

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SOLUTION :`CH_3CH_2Cl,SO_2`
Discussion
23.

Complete the following reaction : XeF_4 + O_2F_2 to

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SOLUTION :`XeF_4 + O_2F_2 to XeF_6 + O_2`
Discussion
24.

Complete the following reaction sequence: CH_(3)-overset(O)overset(||)(C)-CH_(3)-underset((ii)H_(2)O)overset((i)CH_(3)MgBr)(to)[A]underset("Ether")overset("Na Metal")(to)[B]overset(CH_(3)Br)(to)[C]

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Solution :`CH_(3)-overset(O)overset(||)(C)-CH_(3)underset(H_(2)O)overset(CH_(3)MgBr)(to)CH_(3)-underset(2-"methylpropan-2-ol")underset([A])underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OH`
`CH_(3)-underset([A])underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OHunderset("ETHER")overset("Na METAL")(to)CH_(3)-underset([B])underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-ONaoverset(CH_(3)Br)(to)CH_(3)-underset([C])underset(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-OCH_(3)`
Discussion
25.

Complete the following reaction with appropriate reagents :

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ANSWER :`(##ALN_CHM_C09(II)_E01_955_A01##)`
Discussion
26.

Complete the following reaction : P_4 + H_2O to

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SOLUTION :`P_4 + H_2O to` No REACTION
Discussion
27.

Complete the following reaction :(NH_(4))_(2) Cr_(2)O_(7) overset("Heat")(rarr)

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Solution :`(NH_(4))_(2)Cr_(2)O_(7)(s)overset("Heat")(RARR)N_(2)(g)+4H_(2)O(l) + Cr_(2)O_(3)(s)`
Discussion
28.

Complete the following reaction. (i) XeOF_(4)+SiO_(2)rarr A+SiF_(6) (ii) A+SiO_(2)rarr B+SiF_(6)

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SOLUTION :(i) `XeOF_(4)+SiO_(2)RARR underset("(A)")(2XeO_(2)F_(2))+SiF_(6)`
(II) `2XeO_(2)F_(2)+SiO_(2)rarr underset("(B)")(2XeO_(3))+SiF_(6)`
Discussion
29.

Complete the following reaction: NH_3 + 3Cl_2 to "......"+3HCl

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SOLUTION :`NCl_3 `
Discussion
30.

Complete the following reaction: (i) SiCl_(4)+H_(2)Oto? (ii) SiCl_(4)+C_(2)H_(5)OHto? (iii) SiCl_(4)+NH_(3)underset("ether")overset(330K)(to)?

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Solution :(i) `SiCl_(4)+4H_(2)OtoSi(OH)_(4)+4HCl`
(ii) `SiCl_(4)+C_(2)H_(5)OHtoSi(OC_(2)H_(5))_(4)+2Cl_(2)`
(iii)`2SiCl_(4)+NH_(3)underset("ether")(330K)(to) Cl_(3)Si-NH-SiCl_(3)`
Discussion
31.

Complete the following reaction: i) R-CH_(2)-OH overset(Cu)underset(573K)rarr ii) CH_(3)-CH=CH_(2) + H_(2)O overset(H^(+))rarr

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Solution :i) `R-CH_(2)-OH overset(CU)UNDERSET(573K)rarr R-CHO`
II) `CH_(3)-CH=CH_(2)+H_(2)O overset(H^(+))rarr CH_(3)-overset(OH)overset("|")"CH"-CH_(2)`
Discussion
32.

Complete the following reaction: (i) R-CH_(2)-COOH underset(H_(2)O)overset(+X_(2) // "Red P")to (ii) 2CH_(3)COOH overset(Delta, P_(2)O_(5))to

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Solution :(i) `R-CH_(2)COOH UNDERSET(H_(2)O)overset(+X_(2) // "RED P")to R-underset(X)underset(|)CH-COOH+HX`
(ii) `2CH_(3)COOH overset(Delta, P_(2)O_(5))to (CH_(3)CO)_(2)O+H_(2)O`
Discussion
33.

Complete the following reaction. (i) Glucose + acetic anhydride rarr _?_ (ii) What does the above reaction suggest?

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Solution :(II) Glucose forms PENTA acetate with acetic ANHYDRIDE suggesting the presence of five alcohol groups.
`{:(CHO),(|),(CHOH_(4)),(|),(CH_(4)OH),("Glucose"):}`+`underset("Acetic anhydride")(CH_(3)-overset(O)overset(||)C-O-overset(O)overset(||)C-CH_(3))overset("Pyridine")rarr`
`{:(CHO""O""O),(|""||""||),((CH-O-C-CH_(3))_(4)+CH_(3)-C-OH),(|""underset(||)O"""Acetic acid"),(CH_(3)-O-C-CH_(3)),("Glucose Penta Acetate"):} `
Discussion
34.

Complete the followingreaction : (i)Cr_(2)O_(7)^(2-) to (ii)Cr_(2)O_(7)^(2-)+ 6I^(-)+ 14H^(+) to (iii)Cr_(2) O_(7)^(2-)+ 3S^(2-)+ 14H^(+) to (iv ) Cr_(2) O_(7)^(2-) + 3SO_(2) + 2H^(+) to (v ) Cr_(2) O_(7)^(2-)+ 3Sn^(2+) + 14H^(+) to (vi)K_(2)Cr_(2)O_(7) + 8H_(2) SO_(4) + 3CH_(3) CH_(2) OH to (vii) 2MnO_(4)^(-)+ 5 (COO)^(2-)+ 6H^(+) to (viii)2MnO_(4) ^(-) + 10I^(-)+ 16^(+) to (ix)2MnO_(4)^(-)+5S^(2-) +16H^(+) to (x ) 2MnO_(4)^(-)+ 5NO_(2)+ 6H^(+) to (xi )2KMnO_(4)+ 3H_(2) SO_(4)+ 5CH_(3) CH_(2)OH to (xii)2MnO_(4) ^(-)+5SO_(3)^(2-)+ 6H^(+) to

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Solution :(i) It oxidisesferroussalts to ferricsalts .
`Cr_(2) O_(7)^(2-)+ 6Fe^(2+)+ 14H^(+) to`
`2Cr^(3+)+ 6Fe^(3+) + 7H_(2) O`
(II) It oxidisesiodide ionsto IODINE
`Cr_(2) O_(7)^(2-)+ 6I^(-)+ 14H^(+) to`
`2Cr^(3+)+ 3I_(2)+ 7H_(20O`
(iii)It oxidisessulphide ion to sulphur
`Cr_(2) O_(7)^(2-)+ 3S^(2-)+14H^(+) to`
`2Cr^(3+)+3S + 7H_(2)O`
(iv) It OXIDISES sulphurdioxideto sulphateion
`Cr_(2) O_(7)^(2-)+ 3SO_(2) + 2H^(+) to`
`3Cr^(3+)+ 3SO_(4)^(2-) + H_(2)O`
(v)It oxidisesstannous saltto stannicsalt
`Cr_(2) O_(7)^(2-)+ 3Sn^(2+)+ 14H^(+) to `
`2Cr^(3+)+ 3Sn^(4+)+ 7H_(2) O`
(VI) It oxidisesalcohols to acids
`2K_(2) Cr_(2) O_(7)+ 8H_(2)SO_(4)+ 3CH_(3)CH_(2)OH to `
`2K_(2)SO_(4)+ 2Cr_(2)(SO^(4))_(3) + 3CH_(3)COOH+ 11H_(2)O`
(VII)It oxidisesoxalicacid toCO2
`2MnO_(4)^(-) + 5(COO)^(2-)+ 6H^(+) to`
`2Mn^(2+) + 10CO_(20 + 8H_(2)O`
(viii) It oxidisesiodideions to iodine
`2MnO_(4)^(-)+ 10I^(-) 16H^(+) to `
`2Mn^(2+) + 5I_(2) + 8H_(2) O`
(ix) Itoxidisessulphideionto sulphur
`2MnO_(4)^(-)+ 5S^(2-)+ 16H^(+) to`
`2Mn^(2+) + 5S + 8H_(2) O`
(x )It oxidisesnitrites tonitrates
`2MnO_(4)^(-)+ 5NO_(2)^(-)+ 6H^(+) to `
`2Mn^(2+) + 5NO_(3)^(-)+ 3H_(2)O`
(xi )It oxidisesalcohols to aldehydes.
`2KMnO_(4)+3H_(2) SO_(4) + 5CH_(3) CH_(2) OHto2K_(2)SO_(2) +2MnSO_(4)+ 5Ch_(3)CHO+ 8H_(2) O`
(xii) It oxidisessulphiteto sulphate
`2MnO_(4)^(-)+ 5SO_(3)^(2-) + 6H^(+) to `
`2Mn^(2+) +5SO_(4) ^(2-)+ 3H_(2)CO`
Discussion
35.

Complete the following reaction (i) CH_(3)CH_(2)CH_(2)OCH_(3)+HBrto (iii) (CH_(3))_(3)C-O-C_(2)H_(5)overset(HI)(to) (v) CH_(3)CH_(2)CH_(2)CH_(2)OHunderset(Delta)overset(H_(2)SO_(4))(to)

Answer»

SOLUTION :(i) `CH_(3)CH_(2)CH_(2)CH_(2)OCH_(3)+HBrtoCH_(3)Br+CH_(3)CH_(2)CH_(2)OH`

(iii) `(CH_(3))_(3)C-O-C_(2)H_(5)overset(HI)(to)CH_(2)-UNDERSET(CH_(3))underset(|)overset(CH_(3))overset(|)(C)-I+C_(2)H_(5)OH`

(v) `CH_(3)CH_(2)CH_(2)CH_(2)OHunderset(Delta)overset(H_(2)SO_(4))(to) CH_(3)CH_(2)CH=CH_(2)+H_(2)O`
Discussion
36.

Complete the following reaction: (i) CH_(3)-underset(O)underset(||)C-CH_(3) underset("Dry ether")overset(CH_(3), MgBr)to A underset(H_(2)O)overset(H^(+))to B (ii) CH_(3)-CH_(2)-CH_(2)-CHO overset(H_(2) // Ni)to A

Answer»

Solution :(i) `CH_(3)-underset(O)underset(||)C-CH_(3) underset("Dry ETHER")OVERSET(+CH_(3), MGBR)to underset((A))(CH_(3)-underset(CH_(3))underset(|)overset(OMgBr)overset(|)C-CH_(3)) underset(H_(2)O)overset(H^(+))to underset((B))CH_(3)-underset(CH_(3))underset(|)overset(OH)overset(|)C-CH_(3)`
(ii) `CH_(3)-CH_(2)-CH_(2)-CHO overset(H_(2) // NI)to CH_(3)-CH_(2)-CH_(2)-CH_(2)-OH`
Discussion
37.

Complete the following reaction ? HNO_(3) overset(P_(4) O_(10), Delta) rarr ?

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Solution :`P_(4)O_(10)` being a strong dehydrating agent, eleiminates a molecule of `H_(2)O` from two molecules of `HNO_(3)` giving dinitrogen PENTOXIDE `(N_(2)O_(5))`.
`4 HNO_(3) + P_(4)O_(10) overset(DELTA)rarr 2 N_(2)O_(5) + 4 HPO_(3)`
Discussion
38.

Complete the following reaction equations : XeF_2 (s) + H_2O (l) to

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SOLUTION :`2 XeF_2 ( s) + 2H_2O (L) to 2Xe (G) + 4HF (AQ) + O_2(g)`
Discussion
39.

Complete the following reaction equations : NaOH ( cold and dilute ) + Cl_2 to

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SOLUTION :`UNDERSET("(COLD and dil.)")(2NAOH )+ Cl_2 to NaCl + NaOCl + H_2O`
Discussion
40.

Complete the following reaction equations:(i)R-overset(O)overset(||)C-NH_(2)overset(LiAlH_(4))underset(H_(2)O)to(ii) C_(6)H_(5)N_(2)Cl+H_(3)PO_(2)+H_(2)Oto(iii) C_(6)H_(5)NH_(2)+Br_(2)(aq)to

Answer»

Solution :(i) `R-OVERSET(O)overset(||)C-NH_(2)overset(LiAlH_(4))underset(H_(2)O)to R-CH_(2)-NH_(2)`
(II)`C_(6)H_(5)N_(2)Cl+H_(3)PO_(2)+H_(2)OtoC_(6)H_(6)+N_(2)+H_(3)PO_(3)+HCl`
(iii)
Discussion
41.

Complete the following reaction equations : (i) Complete the following reaction equations : (i) R-overset(overset(O)(||))(C)-NH_(2) underset(H_(2)O)overset(LiAlH_(4))(rarr)"(ii) "C _(6)H_(5)N_(2)Cl+H_(3)PO_(2)+H_(2)O rarr (iii) C_(6)H_(5)NH_(2)+Br_(2)(aq) rarr

Answer»

SOLUTION :(i) `R-overset(overset(O)(||))(C)-NH_(2) underset(H_(2)O)overset(LiAlH_(4))(RARR)RCH_(2)NH_(2)`
(ii) `C_(6)H_(5)N_(2)Cl+H_(3)PO_(2)+H_(2)O rarr C_(6)H_(6)+N_(2)+H_(3)PO_(3)+HCl`
Discussion
42.

Complete the following reaction equations: (i) RCHOoverset(Zn//HCl)(to) (ii) CH_(3)CONH_(2)+HNO_(2)to

Answer»

Solution :Complete reactions are given below:
(i) `R-CHOoverset(Zn//HCl)(to)R-CH_(3)+H_(2)O`
(ii) `CH_(3)CONH_(2)overset(HNO_(2))(to)CH_(3)COOH+N_(2)uarr+H_(2)`
Discussion
43.

Complete the following reaction equations : Ca(OCl)_2 + HCl to

Answer»

SOLUTION :The equations CORRESPONDING to THEREACTIONS are given below:
`CA(OCl)_2 + 4HCl to CaCl_2 + 2H_2O + 2Cl_2 `
Discussion
44.

Complete the following reaction equations : Ca_3(PO_4)_2 + SiO_2 + C to

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Solution :The equations CORRESPONDING to THEREACTIONS are GIVEN below:
`2Ca_3(PO_4)_2 + 6SiO_2 + 10C to P_4 + 6CaSiO_3 + 10 CO` .
Discussion
45.

Complete the following reaction equations:

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SOLUTION :
Discussion
46.

Complete the following reaction equations:

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SOLUTION :
Discussion
47.

Complete the following reaction equation : NaClO_(3) (aq) + SO_(2)(g) rarr

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SOLUTION :`CIO_(3)^(-)` being an oxidising agent oxidises `SO_(2)` to `SO_(4)^(2-)` and itself gets REDUCED to `ClO_(2)`.
Alternatively, `SO_(2)` being a reducing agent reduces `ClO_(3)^(-)` to `ClO_(2)` and itself oxidised to `SO_(4)^(2-)`
`underset("Sod. CHLORATE")(2 NaClO_(3)(aq))+SO_(2)(g) RARR underset("Chlorine dioxide")(2 ClO_(2)(g)) + Na_(2)SO_(4)(aq)`
Discussion
48.

Complete the following reaction equation : Ca(OCl)_(2) + HCl.

Answer»

Solution :Bleaching POWDER oxidises HCl to `Cl_(2)`
`UNDERSET("Bleaching powder")(CA(OCL)_(2)+ 4 HCl) rarr CaCl_(2) + 2H_(2)O + 2 Cl_(2)`
Discussion
49.

Complete the following reaction: Cl_2 + F_2 overset(437K)to............

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SOLUTION :`2ClF `
Discussion
50.

Complete the following reaction. CH_3 -undersetoverset(||)(O)(C ) - O - undersetoverset(||)(O)(C ) - CH_3 + PCl_5 to A + B

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Solution :`CH_3 - undersetoverset(||)(O)( C) - O - undersetoverset(||)(O)( C) - CH_3 + PCl_5 to A + B`
`underset("ACETIC ACID")(CH_3 - undersetoverset(||)(O)(C ) - O - undersetoverset(||)(O)(C ) - CH_3 ) + PCl_5 to underset("ACETYL chloridephosphoryl CHLORIDE")(2CH_3 - undersetoverset(||)(O)(C ) -Cl + POCl_3)`
Discussion