InterviewSolution
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InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The anydride of hypochlorous acid is …………… |
| Answer» Correct Answer - `CIO_(2)` | |
| 2. |
Outermost electronic comfiguration of the highest electronegative atom is ……….. |
| Answer» Correct Answer - `2s^(2)2p^(5)` | |
| 3. |
Select the correct order:A. `HI gt HBr gt HCI gt HF`B. `HCIO_(4) gt HBrO_(4) gt HIO_(4)`C. `HCIO lt HBrO lt HIO`D. None of these |
| Answer» Correct Answer - A::B | |
| 4. |
Bleaching powder is a mixture ofA. Calcium hypochlorite and calcium chlorideB. Calcium chlorate and calcium chlorideC. Calcium hypochlorite and basic calcium chlorideD. Calcium chlorate and calcium hydroxide |
| Answer» Correct Answer - C | |
| 5. |
Estimation of reducing substances by the use of standard `I_(2)`, `I_(2)+2S_(2)O_(3)^(2-)rarr S_(4)O_(6)^(2-)+2I^(Theta)` is calledA. IoimetryB. IodometryC. OxidisingD. Reducing |
| Answer» Correct Answer - A | |
| 6. |
The oxidising ability of perhalates are in the order:A. `CIO_(4)^(Theta) gt BrO_(4)^(Theta) gt IO_(4)^(Theta)`B. `CIO_(4)^(Theta) lt BrO_(4)^(Theta) lt IO_(4)^(Theta)`C. `BrO_(4)^(Theta) gt IO_(4)^(Theta) gt CIO_(4)^(Theta)`D. `IO_(4)^(Theta) lt BrO_(4)^(Theta) lt CIO_(4)^(Theta)` |
| Answer» Correct Answer - B | |
| 7. |
Euchlorine is a mixture ofA. `CI_(2)` and `SO_(2)`B. `CI_(2)` and `CIO_(2)`C. `CI_(2)` and `CO`D. None |
| Answer» Correct Answer - B | |
| 8. |
Ticture of iodine containsA. `I_(2),KI` and `C_(2)H_(5)OH`B. `I_(2)` and `C_(2)H_(5)OH`C. `KI` and `C_(2)H_(5)OH`D. `I_(2)` and `H_(2)O` |
| Answer» Correct Answer - A | |
| 9. |
Acid strength is in the order:A. `HCIO_(4) gt HIO_(4) gt HBrO_(4)`B. `HCIO_(4) gt HBrO_(4) gt HIO_(4)`C. `HCIO_(4) lt HBrO_(4) gt HIO_(4)`D. None |
| Answer» Correct Answer - B | |
| 10. |
volatile nature of halogens is becauseA. The halogen molecules are more reactiveB. The force existing between the molecules are only weak van der Waal forcesC. Halogen molecules are bounded by strong forceD. Halogen molecules are bounded by electrostatic forces. |
| Answer» Correct Answer - B | |
| 11. |
On heating NaX with `H_(2)SO_(4)` and `MnO_(2)` the halogens that cannot be prepared is ……..A. `I_(2)`B. `CI_(2)`C. `Br_(2)`D. `F_(2)` |
| Answer» Correct Answer - D | |
| 12. |
Oxidising power of halogens areA. `F_(2)gtCI_(2)gtBr_(2)gtI_(2)gtAt_(2)`B. `At_(2)gtF_(2)gtBr_(2)gtCI_(2)gtF_(2)`C. `CI_(2)gtBr_(2)gtF_(2)gtI_(2)gtAt_(2)`D. `CI_(2)gtF_(2)gtBr_(2)gtI_(2)gtAt_(2)` |
| Answer» Correct Answer - A | |
| 13. |
HCI and HF are prepared by heating their salt `(NaCI` and `CaF_(2))` with conc. `H_(2)SO_(4)` but HI and HBr cannot he prepared by similar reaction because HBr and HI haveA. Reducing propertiesB. Oxidising propertyC. Complex forming abilityD. None of these |
| Answer» Correct Answer - A | |
| 14. |
HBr and HI may be obtained by heating bromide and iodine with syrupy phosphoric acid not with `H_(2)SO_(4)` because `H_(2)SO_(4)` isA. A weaker acidB. Less stableC. An oxidising agentD. A reducing agent |
| Answer» Correct Answer - C | |
| 15. |
The following acid have arrange in the order of decreasing strength. Identify the correct order. `CIOH(I) BrOH(II) IOH(III)`A. `IgtIIgtIII`B. `IIgtIgtIII`C. `IIIgtIIgtI`D. `IgtIIIgtII` |
| Answer» Correct Answer - A | |
| 16. |
Arrange the following acids in the decreasing order of their acid strength: `HF, HCl, HBr, HI`A. `HF lt HCI lt HBr lt HI`B. `HF gt HCI gt HBr gt HI`C. `HCI lt HF lt HBr lt HI`D. `HI lt HBr lt HF lt HI` |
| Answer» Correct Answer - A | |
| 17. |
The stronger reducing agent among all the halide ions is ……………. |
| Answer» Correct Answer - Iodide ion | |
| 18. |
The halogen which normally does not form oxoacid is …………….. |
| Answer» Correct Answer - Fluorine | |
| 19. |
In the halogen group, chlorine is a gas, bromine is a liquid and iodine exists as solid crystals. Then the next halogen astatine (At) would beA. Solid at room temperatureB. Having higher electronegativityC. Liquid with higher ionisation enthalpyD. Least atomic size |
| Answer» Correct Answer - A | |
| 20. |
Which one of the following halogen acids has the lowest melting point ?A. HFB. HCIC. HBrD. HI |
| Answer» Correct Answer - B | |
| 21. |
Chlorine was discovered by ………… |
| Answer» Correct Answer - Scheele | |
| 22. |
Iodine is placed between two liquids `C_(6)H_(6)` and water:A. It dissolves more in `C_(6)H_(6)`B. It dissolves more in waterC. It dissolves equally in bothD. Does not dissolved in both |
| Answer» Correct Answer - A | |
| 23. |
Fluorine, the first member of group 17, differs form the other members of group in may respects due to: i. Very small size ii. Very high electronegativity iii. Absence of vacant d-orbitals in the valence shell iv. Dissociation energy in the molecular form `(X_(2))` is the least Which halogen does not form any oxyacid ?A. IodineB. BromineC. ChlorineD. Fluorine |
| Answer» Correct Answer - D | |
| 24. |
Fluorine, the first member of group 17, differs form the other members of group in may respects due to: i. Very small size ii. Very high electronegativity iii. Absence of vacant d-orbitals in the valence shell iv. Dissociation energy in the molecular form `(X_(2))` is the least Which of the following bonds is the stronger ?A. `F-F`B. `CI-CI`C. `Br-Br`D. `I-I` |
| Answer» Correct Answer - B | |
| 25. |
Fluorine, the first member of group 17, differs form the other members of group in may respects due to: i. Very small size ii. Very high electronegativity iii. Absence of vacant d-orbitals in the valence shell iv. Dissociation energy in the molecular form `(X_(2))` is the least Which has the maximum molar enthalpy of vaporisation ?A. HFB. HCIC. HBrD. HI |
| Answer» Correct Answer - A | |
| 26. |
Fluorine, the first member of group 17, differs form the other members of group in may respects due to: i. Very small size ii. Very high electronegativity iii. Absence of vacant d-orbitals in the valence shell iv. Dissociation energy in the molecular form `(X_(2))` is the least Which member of the group 17 does not show positive oxidation state ?A. IodineB. BromineC. ChlorineD. Fluorine |
| Answer» Correct Answer - D | |
| 27. |
The relative acidic strength, stability and oxidising agent of oxy-acids of chlorine areA. `HCIO_(4)gtHCIO_(3)gtHCIO_(2)gtHOCI`B. `HCIO_(4)gtHCIO_(2)gtHCIO_(3)gtHOCI`C. `HOCI lt HCIO_(2) gt HCIO_(3) gt HCIO_(4)`D. `HCIO_(3) gt HCIO_(2) gt HCIO_(4) gt HOCI` |
| Answer» Correct Answer - A | |
| 28. |
The element having 9 protons and 10 neutrons is ……….. |
| Answer» Correct Answer - Fluorine | |
| 29. |
In gaseous state, ionic character is greatest inA. HBrB. HFC. HCID. HI |
| Answer» Correct Answer - B | |
| 30. |
Which has the highest degree of hydrogen bopnding ?A. HCIB. `H_(2)O`C. HFD. HBr |
| Answer» Correct Answer - C | |
| 31. |
Flurine absorbs ……… portion of light and appears yellow. |
| Answer» Correct Answer - Violet | |
| 32. |
`CIO_(2)O` is an anhydride of ………… |
| Answer» Correct Answer - HOCI | |
| 33. |
The sum of energy team involved in the reaction: `1//2 X_(2(g))rarr X_((aq))^(Theta)` is highest in case ofA. FluorineB. ChlorineC. BromineD. Iodine |
| Answer» Correct Answer - A | |
| 34. |
The tetrahedral nature of the three bonds in a chlorate ion `(CIO_(3)^(Theta))` is due toA. The presence of a lone of electronsB. `sp^(3)`-hybridisationC. `sp^(2)`-hybridisationD. Trigonal bipyramidal shape of ion |
| Answer» Correct Answer - B | |
| 35. |
Which one of the following acts as an antichlor ?A. `MnO_(2)`B. `Na_(2)S_(2)O_(3)`C. `K_(2)Cr_(2)O_(7)`D. `Na_(2)SO_(4)` |
| Answer» Correct Answer - B | |
| 36. |
One gas bleaches the colour of flowers by reduction and other by oxidation. These gases areA. `SO_(2)` and `CI_(2)`B. CO and `CI_(2)`C. `NH_(3)` and `SO_(2)`D. `H_(2)` and `Br_(2)` |
| Answer» Correct Answer - A | |
| 37. |
Which one of the following arrangements does not give the correct picture of the trends indicated against it ?A. `F_(2)gtCI_(2)gtBr_(2)I_(2)` : Bond dissociation energyB. `F_(2)gtCI_(2)gtBr_(2)I_(2)` : Oxidising powerC. `F gt CI gt Br gt I` : Electron gain enthalpyD. `F_(2) gt CI_(2)Br_(2) gt I_(2)` : Electronegativity |
| Answer» Correct Answer - A::C | |
| 38. |
Halogens react with each other to form a number of compounds called interalogen compounds. Their genral formula is `AX_(n)`, where A is less electronegative halogen while X is a more electronegative halogen and n is its number. The interhalogen compounds are essentially convalent and more reactive than the halogens since the bond A-X is weaker than A-A or X-X bond. The reaction of interhalogens are similar to those of halogens. Which of the following statement is wrong for interhalogen ?A. The value of n in `AX_(n)` (interhalogen) can be 1,3,5 or 7B. The value of n in `AX_(n)` (intrehalogen) can be 2,4, or 6C. A can never be fluorine as it is most electronegative halogen.D. `X` can never be iodine as it is least electronegative halogen. |
| Answer» Correct Answer - B | |