question_answer 1) Which of the following is used in the preparation of chlorine? [AIPMT 1999]
A)
Only \[Mn{{O}_{2}}\]
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B)
Only \[KMn{{O}_{4}}\]
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C)
Both \[Mn{{O}_{2}}\] and \[KMn{{O}_{4}}\]
done
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D)
Either \[Mn{{O}_{2}}\] and \[KMn{{O}_{4}}\]
done
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question_answer 2) Which one of the following arrangements does not truly represent the property indicated against it? [AIPMT 2000]
A)
\[B{{r}_{2}}<C{{l}_{2}}<{{F}_{2}}:\] Oxidising power
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B)
\[B{{r}_{2}}<C{{l}_{2}}<{{F}_{2}}:\] Electronegativity
done
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C)
\[B{{r}_{2}}<{{F}_{2}}<C{{l}_{2}}:\] Electron affinity
done
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D)
\[B{{r}_{2}}<C{{l}_{2}}<{{F}_{2}}:\] Bond energy
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question_answer 3) Which reaction is not feasible? [AIPMT 2002]
A)
\[2KI+B{{r}_{2}}3KBr+{{I}_{2~}}\]
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B)
\[2KBr+{{I}_{2}}2KI+B{{r}_{2}}\]
done
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C)
\[2KBr+C{{l}_{2}}2KCl+B{{r}_{2}}\]
done
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D)
\[2{{H}_{2}}O+2{{F}_{2}}~4HF+{{O}_{2}}\]
done
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question_answer 4) Which of the following statements is not true? [AIPMT 2003]
A)
\[HOCl\] is a stronger add than \[HOBr\]
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B)
\[HF\] is a stronger acid than \[HCl\]
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C)
Among halide tons, iodide is the most powerful reducing agent
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D)
Fluorine is the only halogen that does not show a variable oxidation state
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question_answer 5) Among the following which is the strongest oxidising agent? [AIPMT (S) 2009]
A)
\[5.65\times {{10}^{-10}}\]
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B)
\[6.50\times {{10}^{-12}}\]
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C)
\[5.65\times {{10}^{-13}}\]
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D)
\[5.65\times {{10}^{-12}}\]
done
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question_answer 6) Which one of the following is present as an active ingredient in bleaching powder for bleaching action? [AIPMT (S) 2011]
A)
\[\text{Ca(OCl}{{\text{)}}_{\text{2}}}\]
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B)
\[\text{Ca}{{\text{O}}_{\text{2}}}\text{Cl}\]
done
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C)
\[\text{CaC}{{\text{l}}_{\text{2}}}\]
done
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D)
\[\text{CaOC}{{\text{l}}_{\text{2}}}\]
done
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question_answer 7) When \[\text{C}{{\text{l}}_{\text{2}}}\] gas reacts with hot and concentrated sodium hydroxide solution, the oxidation number of chlorine changes from [AIPMT (S) 2012]
A)
zero to +1 and zero to -5
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B)
zero to -1 and zero to +5
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C)
zero to -1 and zero to +3
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D)
zero to +1 and zero to -3
done
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question_answer 8) A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number? [AIPMT (S) 2012]
A)
S
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B)
H
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C)
Cl
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D)
C
done
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question_answer 9) Which of the statements given below is incorrect? [NEET 2015 (Re)]
A)
\[C{{l}_{2}}{{O}_{7}}\] is an anhydride of perchloric acid
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B)
\[{{O}_{3}}\]molecule is bent
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C)
OFN is isoelectronic with \[N{{O}_{2}}\]
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D)
\[O{{F}_{2}}\]is an oxide of fluorine
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question_answer 10) The variation of the boiling point of the hydrogen halides is in the order HF > HI > HBr > HCl. What explains the higher boiling point of hydrogen fluoride? [NEET 2015 (Re)]
A)
The electronegativity of fluorine is much higher than for other elements in the group
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B)
There is strong hydrogen bonding between HF molecules
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C)
The bond energy of HF molecules is greater than in other hydrogen halides
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D)
The effect of nuclear shielding is much reduced in fluorine which polarises the HF molecule
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question_answer 11) Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules? [NEET - 2016]
A)
\[{{I}_{2}}>\text{ }B{{r}_{2}}>\text{ }C{{l}_{2}}>{{F}_{2}}\]
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B)
\[C{{l}_{2}}>\text{ }B{{r}_{2}}>\text{ }{{F}_{2}}>\text{ }{{I}_{2}}\]
done
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C)
\[B{{r}_{2}}>\text{ }{{I}_{2}}>\text{ }{{F}_{2}}>\text{ }C{{l}_{2}}\]
done
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D)
\[{{F}_{2}}>\text{ }C{{l}_{2}}>\text{ }B{{r}_{2}}>\text{ }{{I}_{2}}\]
done
clear
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question_answer 12) \[HgC{{l}_{2}}\]and \[{{l}_{2}}\] both when dissolved in water containing \[{{l}^{-}}\]ions the pair of species formed is [NEET-2017]
A)
\[H{{g}_{2}}{{l}_{2}},{{l}^{-}}\]
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B)
\[Hg{{l}_{2}},l_{3}^{-}\]
done
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C)
\[Hg{{l}_{2}},{{l}^{-}}\]
done
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D)
\[Hgl_{4}^{2-},l_{3}^{-}\]
done
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question_answer 13) Which of the following statements is not true for halogens? [NEET - 2018]
A)
All but fluorine show positive oxidation states
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B)
All are oxidizing agents
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C)
All form monobasic oxyacid
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D)
Chlorine has the highest electron-gain enthalpy
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