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 chemical reaction equations :XeF_2 + H_2O to

Answer»

SOLUTION :`2XeF_2 + H_2O to 2Xe + 4HF + O_2 `
Discussion
2.

Complete the following chemical reaction equations : underset("(conc.)")(I_2) + HNO_3 to

Answer»

SOLUTION :`I_2 + 10HNO_3 (CONC.) to 2HIO_3 + 10 NO_2 + 4H_2O`
Discussion
3.

Complete the following chemical reaction equations :PH_3 + HgCl_2 to

Answer»

SOLUTION :`2PH_3 + 3HgCl_2 to Hg_3P_2 + 6HCL`
Discussion
4.

Complete the following chemical reaction equations : P_4 + SO_2Cl_2 to

Answer»

SOLUTION :`P_4 + 10SO_2Cl_2 to 4PCl_5 + 10SO_2`
Discussion
5.

Complete the following chemical reaction equations P_(4)+SO_(2)Cl_(2)rarr

Answer»

<P>

Solution :`P_(4)+10SO_(2)Cl_(2)RARR 4PCl_(5)+10SO_(2)`
Discussion
6.

Complete the following chemical reaction equations : P_4 (s) + NaOH (aq) + H_2O (l) to

Answer»

SOLUTION :`P_4(s) + 3NaOH (AQ) + 3H_2O (L) to PH_3 + 3NaH_2PO_2 `
Discussion
7.

Complete the following chemical reaction equations : (i)P _(4(s)) +NaOH_((aq))+H_(2)O_((//)) to (ii) I_((aq))^(-)+H_(2)O_((//))+O_(3(g))to

Answer»

<P>

Solution :`(i)P _(4(s)) +3NaOH_((aq))+3H_(2)O_((//)) to PH_(3)+3NaH_(2)PO_(2)`
`(ii) I_((aq))^(-)+H_(2)O_((//))+O_(3(g))to I_(2(g))+2OH_((aq))^(-)`
Discussion
8.

Complete the following chemical reaction equations : (i) l_(2)+HNO_(3) (conc.) to (ii)H_(g)Cl_(2)+PH_(3) to

Answer»

SOLUTION :`(i) l_(2)+10HNO_(3) (conc.) to 2HIO_(3)+10NO_(2)+4H_(2)O`
(II) `3HgCl_(2)+2PH_(3) to Hg_(3)P_(2)+6HCL`
Discussion
9.

Complete the following chemical reaction equations : (i) MnO_(4)^(-)(aq)+C_(2)O_(4)^(2-)(aq)+H^(+)(aq)to (ii) Cr_(2)O_(7)^(2-)(aq)+Fe^(2+)(aq)+H^(+)(aq)to

Answer»

Solution :(i) `2MnO_(4)^(-)(aq)+5C_(2)O_(4)^(2-)(aq)+16H^(+)(aq)to2Mn^(2+)(aq)+8H_(2)O(l)+10CO_(2)(g)`
(ii) `Cr_(2)O_(7)^(2-)(aq)+6FE^(2+)(aq)+14H^(+)(aq)to2Cr^(3+)(aq)+6Fe^(3+)(aq)+7H_(2)O(l)`
Discussion
10.

Complete the following chemical reaction equations : (i) P_(4)+SO_(2)Cl_(2)rarr (ii) XeF_(6)+H_(2)Orarr (b) Predict the shape and the asked angle (90^(@)" or more or less") in each ofthe following cases : (i) SO_(3)^(2-) and the angle O-S-O (ii) ClF_(3) and the angle F-Cl-F (iii) XeF_(2) and the angle F-Xe-F

Answer»

<P>

Solution :(i) `P_(4)+10SO_(2)Cl_(2)rarr 4PCl_(5)+10SO_(2)`.
(ii) `XeF_(6)+XeOF_(4)+2HF`
or
`XeF_(6)+2H_(2)Orarr XeO_(2)F_(4)+4HF`
or
`XeF_(6)+3H_(2)Orarr XeO_(3)+6HF`
(b) (i) Pyramidal or

The ANGLE `O-S-O` more than `90^(@)`.
(ii) BENT T - shaped or

The angle `F-Cl-F` is lesser than `90^(@)`.
(iii) Linear shape or

The angle `F-Xe-F` is GREATER than `90^(@)`
Discussion
11.

Complete the following chemical reaction equations : (i) I_(2)+underset("(conc.)")(HNO_(3))rarr (ii) HgCl_(2)+PH_(3)rarr

Answer»

<P>

Solution :(i) `I_(2)+10HNO_(3)RARR 2HIO_(3)+10NO_(2)+4H_(2)O`
(ii) `3HgCl_(2)+2PH_(3)rarr Hg_(3)P_(2)+6HCL`
Discussion
12.

Complete the following chemical reaction equations : I^(-) (aq) + H_2O (l)+ O_3 (g) to

Answer»

SOLUTION :`2I^(-) (AQ) + H_2O (L) + O_3(G) to 2OH^(-) (aq) + I_2 (s) + O_2(g)`
Discussion
13.

Complete the following chemical reaction equations : HgCl_2 + PH_3 to

Answer»

SOLUTION :`3Hg Cl_2 + 2PH_3 to Hg_3P_2 + 6HCL`
Discussion
14.

Complete the following chemical reaction.

Answer»

SOLUTION :
Discussion
15.

Complete the following chemical reaction.gt C=O+NH_(2)OH rarr __________ + H_(2)O

Answer»

SOLUTION :
Discussion
16.

Complete the following chemical equations : XeF_6 (s) + H_2O(l) to

Answer»

SOLUTION :`XeF_6 ( s) + 3H_2O (L) to XeO_3 + 6HF`
Discussion
17.

Complete the following chemical equations : XeF_4 + O_2F_2 to

Answer»

SOLUTION :`XeF_4 + O_2F_2 to XeF_6 + O_2`
Discussion
18.

Complete the following chemical equations : XeF_4 + H_2O to

Answer»

SOLUTION :`6 XeF_4 + 12 H_2O to 4 XE + 2 XeO_3 + 24 HF + 3O_2 `
Discussion
19.

Complete the following chemical equations : XeF_2 + H_2O to

Answer»

SOLUTION :`2XeF_2 + H_2O to 2Xe + 4HF + O_2 `
Discussion
20.

Complete the following chemical equations : SO_3 + H_2SO_4 to

Answer»

SOLUTION :`SO_3 + H_2SO_4 to H_2S_2O_7`
Discussion
21.

Complete the following chemical equations : underset("(Hot and conc.)")(NaOH(aq)) + Cl_2(g) to

Answer»

SOLUTION :` underset("(HOT and conc.)")(6NaOH (aq) + 3Cl_2(G)) to 5NaCl + NaClO_3 + 3H_2O`
Discussion
22.

Complete the following chemical equations. PbS+4O_3toPbSO_4+_________

Answer»

SOLUTION :`PbS+4O_(3) to PbSO_(4)+4O_(2) " OR"4O_(2)`
Discussion
23.

Complete the following chemical equations : P_4 + NaOH + H_2O to

Answer»

SOLUTION :`P_4 + 3NaOH + 3H_2O to UNDERSET("PHOSPHINE")(PH_3) + underset("(SODIUM HYPOPHOSPHITE)")(3NaH_2PO_2)`
Discussion
24.

Complete the following chemical equations : O_3(g) + I^(-) (aq) + H_2O(l) to

Answer»

SOLUTION :Completed equations are given as under:
`O_3(G) + 2I^(-) (AQ) + H_2O (L) to I_2(s) + O_2(g) + 2OH^(-) (aq)`
Discussion
25.

Complete the following chemical equations : P_4 + SO_2Cl_2 to

Answer»

SOLUTION :`P_4 + 10 SO_2 Cl_2 to 4PCl_5 + 10 SO_2`
Discussion
26.

Complete the following chemical equations : NH_(4)Cl_((aq))+NaNO_(2(aq))-

Answer»

Solution :`NH_(4)Cl_((aq))+NaNO_(2(aq))rarr N_(2(g))+2H_(2)O_((L))+NaCl_((aq))`
Discussion
27.

Complete the following chemical equations : I_2 + underset("(conc.)")(HNO_3)to

Answer»

SOLUTION :`I_2 + 10HNO_3 (CONC.) to 2HIO_3 + 10 NO_2 + 4H_2O`
Discussion
28.

Complete the following chemical equations(i) PbS+4O_(3)rarr PbSO_(4)+ _________(ii) Cu+2H_(2)SO_(4)rarr CuSO_(4)+ _______ +2H_(2)O(iii) Cl_(2)+2H_(2)O+SO_(2)rarr_______ +2HCl

Answer»

Solution :(i) `PbS+4O_(3)RARR PbSO_(4)+4O_(2)`OR`SO_(2)`
(ii) `Cu+2H_(2)SO_(4)rarr CuSO_(4)+SO_(2)+2H_(2)O`OR `SO_(2)`
(iii)`Cl_(2)+2H_(2)O+SO_(2)rarr H_(2)SO_(4)+2HCL`. OR `H_(2)SO_(4)`
Discussion
29.

Complete the following chemical equations : (i) NH_3 + 3CI_2 to … + 3HCI (ii) Na_(2) SO_(3) + 2HCI to 2NaCI+ H_(2) O + …. (iii) Br_(2) + 3F_(2) to …..

Answer»

SOLUTION :i) `NCI_3`
(II) `SO_2`
(III) `2BrF_3`.
Discussion
30.

Complete the following chemical equations : (i) MnO_(4)^(-)+C_(2)O_(4)^(2-)+H^(+)to (ii) KMnO_(4)overset("heated")to (iii) Cr_(2)O_(7)^(2-)H_(2)S+H^(+)to

Answer»

Solution :The COMPLETED REACTIONS are given as under :
(i) `2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+)to2Mn^(2+)+8H_(2)O+10CO_(2)`
(ii)`2KMnO_(4)overset("HEAT")to K_(2)MnO_(4)+MnO_(2)+O_(2)`
(iii) `Cr_(2)O_(7)^(2-)+3H_(2)S+14H^(+)to2Cr^(3+)+7H_(2)O+6H^(+)+3S`
Discussion
31.

Complete the following chemical equations : (i) MnO_(4)^(-)(aq)+S_(2)O_(3)^(2-)(aq)+H_(2)O(l)to (ii) Cr_(2)O_(7)^(2-)(aq)+Fe^(2+)(aq)+H^(+)(aq)to

Answer»

Solution :The completed equations are given as under :
(i) `8MnO_(4)^(-)(aq)+3S_(2)O_(3)^(2-)(aq)+H_(2)O(L)to8MnO_(2)(s)+6SO_(4)^(2-)(aq)+2OH^(-)(aq)`
(II) `Cr_(2)O_(7)^(2-)(aq)+14H^(+)(aq)+6Fe^(2+)(aq)to2Cr^(3+)(aq)+7H_(2)O(l)+6Fe^(3+)(aq)`
Discussion
32.

Complete the following chemical equations: (i) MnO_(4)^(-) (aq) + S_2O_(3)^(2-) (aq)+ H_2O(l) to (ii) Cr_(2)O_(7)^(2-) (aq) + Fe^(2+) (aq) + H^(+)(aq) to

Answer»

Solution :(i) `8MnO_(4)^(-) (aq) + 3S_2O_(3)^(2-) (aq) + H_2O(L) to 8MnO_(2)(s) + 6SO_(4)^(2-)(aq) + 2OH^(-)(aq)`.
(ii) `Cr_2 O_(7)^(2-) + 14H^(+)(aq) + 6Fe^(2+) (aq)to 2Cr^(3+) (aq) + 6Fe^(3+) (aq) + 7H_2O_((l))`
Discussion
33.

Complete the following chemical equations : (i) Cr_(2)O_(7)^(2-)+6Fe^(2+)+14H^(+)to (ii) 2CrO_(4)^(2-)+2H^(+)to (iii) 2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+)to

Answer»

SOLUTION :(i) `Cr_(2)O_(7)^(2-)+6Fe^(2+)+14H^(+)to2Cr^(3+)+6Fe^(3+)+7H_(2)O`
(ii) `2CrO_(4)^(2-)+2H^(+)to Cr_(2)O_(7)^(2-)+H_(2)O`
(iii) `2MnO_(4)^(-)+5C_(2)O_(4)^(2-)+16H^(+)to 2Mn^(2+)+8H_(2)O+10CO_(2)`
Discussion
34.

Complete the following chemical equations : (i) Cr_(2)O_(7)^(2-)+H^(+)+I^(-)to (ii) MnO_(4)^(-)+NO_(2)^(-)+H^(+)to

Answer»

Solution :(i) `Cr_(2)O_(7)^(2-)+14H^(+)+6I^(-)to2Cr^(3+)+3I_(2)+7H_(2)O`
(II) `2MnO_(4)^(-)+5NO_(2)^(-)+6H^(+)to2Mn^(2+)+5NO_(3)^(-)+3H_(2)O`
Discussion
35.

Complete the following chemical equations : (i)Cr_2O_6^(2-)+6Fe^(2+)+14H^+to (ii) 2CrO_4^(2-)+2H^+to (iii) 2MnO_4^(-)+5C_2O_4^(2-)+16H^+to

Answer»

Solution :(i) `6E^(2+)+Cr_2O_7^(2-)+14H^+to2Cr^(3+)+6Fe^(3+)+7H_2O`
(ii) `2CrO_4^(2-)+2H^+toCr_2O_7^(2-)+H_2O`
(III) `2MnO_4^(-)+5C_2O_4^(2-)+16H^(+)to2Mn^(2+)+10CO_2+8H_2O`
Discussion
36.

Complete the following chemical equations : (i) Ca_(3)P_(2)(s) + H_(2)O(l) rarr.........(ii) Cu^(2+)(aq) + underset(("excess"))(NH_(3)(aq))rarr.........(iii)F_(2)(g) + H_(2)O(l) rarr ..........

Answer»

Solution :(i) `Ca_(3)P_(2)(s) + H_(2)O(L)rarr3Ca(OH)_(2)(aq)+2PH_(3)(g)`
OR
`Ca_(3)P_(2)+ 6H_(2)Orarr3Ca(OH)_(2)+2PH_(3)`
(ii)`underset("blue")(Cu^(2+))(aq)+4NH_(3)(aq)iffunderset("DEEP blue")([Cu(NH_(3))_(4)])^(2+)(aq)`
(iii)`2F_(2)(g) + 2H_(2)O(l) rarr 4H^(+)(aq) + 4F^(-)(aq) + O_(2)(g)`
Discussion
37.

Complete the following chemical equations : (i) Ca_(3)P_(2)+H_(2)Orarr (ii) Cu+H_(2)SO_(4)" (conc.)"rarr

Answer»

SOLUTION :(i) `Ca_(3)P_(2)+6H_(2)Orarr 3Ca(OH)_(2)+2PH_(3)`
(ii) `Cu+2H_(2)SO_(4)" (conc.)"RARR CuSO_(4)+2H_(2)O+SO_(2)`
Discussion
38.

Complete the following chemical equations : HgCl_2 + PH_3 to

Answer»

SOLUTION :`3Hg Cl_2 + 2PH_3 to Hg_3P_2 + 6HCL`
Discussion
39.

Complete the following chemical equations : F_2(g) + NH_3(aq) to

Answer»

Solution :Completed and BALANCED CHEMICAL EQUATIONS for the REACTIONS are given below:
`F_2(g) + H_2O(l) to 4H^(+) (aq) + 4F^(-) (aq) + O_2(g)`
Discussion
40.

Complete the following chemical equations : F_2(g) + H_2O (l) to

Answer»

Solution :COMPLETED equations are GIVEN as under:
`2F_2(g) + 2H_2O (l) "(COLD)" to 4HF (AQ) + O_2 (g)` :
`2F_2(g) + 3H_2O " (hot) " to 6HF (aq) + O_3 (g)`
Discussion
41.

Complete the following chemical equations : Cu^(2+) (aq) + NH_3 (aq) to

Answer»

Solution :Completed and balanced chemical equations for the REACTIONS are given below:
` Cu^(2+) (AQ) +4 NH_3(aq) to underset("DEEP BLUE")([Cu(NH_3)_4]^(2+))(aq)`
Discussion
42.

Complete the following chemical equations : Cu + HNO_3 ( dilute)to

Answer»

SOLUTION :`3 Cu + 8HNO_3 (" dilute") to 3Cu (NO_3)_2 + 2NO + 4H_2O `
Discussion
43.

Complete the following chemical equations. Cu+2H_2SO_4toCuSO_4+"____________"+2H_2O

Answer»

SOLUTION :`Cu+2H_(2)SO_(4) to CuSO_(4)+SO_(2)+2H_(2)O " OR " SO_(2)`
Discussion
44.

Complete the following chemical equations : Cl_2 + F_2 underset("(excess)")(F_2) to

Answer»

SOLUTION :`Cl_2 + UNDERSET("(EXCESS)")(3F_2) OVERSET(573K) to 2ClF_3 `
Discussion
45.

Complete the following chemical equations. Cl_2+2H_2O+SO_2to"________"+2HCl

Answer»

Solution :`Cl_(2)+2H_(2)O+SO_(2) to H_(2)SO_(4) +2HCL " OR " H_(2)SO_(4)`
Discussion
46.

Complete the following chemical equations : Ca_3P_2(s) + H_2O (l) to

Answer»

Solution :Completed and balanced chemical EQUATIONS for the reactions are GIVEN below:
`Ca_3P_2(s) + 6H_2O(l) to 3Ca(OH)_2 +2PH_3`
Discussion
47.

Complete the following chemical equations : Ca_3P_2 (s) + H_2O (l) to

Answer»

Solution :COMPLETED equations are GIVEN as under:
`Ca_3P_2 (s) + 6H_2O (l) to 3Ca(OH)_2 (AQ) + 2PH_3 (g) `
Discussion
48.

Complete the following chemical equations : C + H_2SO_4 (conc. ) to

Answer»

SOLUTION :`C + 2H_2SO_4 ( CONC.) to CO_2 + 2SO_2 + 2H_2O `
Discussion
49.

Complete the following chemical equation - XeF_(4)+SbF_(5)rarr

Answer»

Solution :`XeF_(4)+SbF_(5)RARR [XeF_(3)]^(+).[SbF_(6)]^(-)`
Discussion
50.

Complete the following chemical equation : XeF_4 + H_2O to

Answer»

SOLUTION :`6XeF_4 + 12H_2O to 4Xe + 2XeO_3 + 24HF + 3O_2`
Discussion