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question_answer1)
Which of these can be used as moth repellant [CPMT 1987]
A)
Benzene hexachloride done
clear
B)
Benzal chloride done
clear
C)
Hexachloroethane done
clear
D)
Tetrachloroethane done
clear
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question_answer2)
Which one of the following is the correct formula of dichlorodiphenyl trichloroethane [AIIMS 1982]
A)
B)
C)
D)
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question_answer3)
The compound \[\overset{\overset{\,\,\,\,\,\,\,\,\,\,\,OH}{\mathop{\,\,\,\,\,\,\,\,\,\,\,|}}\,}{\mathop{{{(C{{H}_{3}})}_{2}}.CCC{{l}_{3}}}}\,\] is
A)
Chloretone done
clear
B)
Chloroquin done
clear
C)
Chloropicrin done
clear
D)
Chloropropyl chloride done
clear
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question_answer4)
Depletion of ozone layer is caused by [RPMT 2002]
A)
Freon done
clear
B)
Alkane done
clear
C)
Gringard reagent done
clear
D)
All of these done
clear
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question_answer5)
Which of the following is Teflon [RPMT 2002]
A)
\[{{[-C{{F}_{2}}-C{{F}_{2}}-]}_{n}}\] done
clear
B)
\[C{{F}_{2}}=C{{F}_{2}}\] done
clear
C)
\[CF\equiv CF\] done
clear
D)
None of these done
clear
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question_answer6)
Statement - Ozone in atmosphere is decreased by chloro-fluoro-carbon \[(C{{l}_{2}}{{F}_{2}}C)\]? [RPET 1999]
A)
Is true done
clear
B)
Is false done
clear
C)
Only in presence of \[C{{O}_{2}}\] done
clear
D)
Only in absence of \[C{{O}_{2}}\] done
clear
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question_answer7)
\[C{{F}_{x}}C{{l}_{y}}\] [where x + y = 4]. These compounds are not used because [RPET 2000]
A)
These are fluoro carbons done
clear
B)
These are difficult to synthesise done
clear
C)
They deplete ozone layer done
clear
D)
None of the these done
clear
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question_answer8)
The molecular formula of DDT has [MP PMT 1997]
A)
5 chlorine atoms done
clear
B)
4 chlorine atoms done
clear
C)
3 chlorine atoms done
clear
D)
2 chlorine atoms done
clear
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question_answer9)
What is the reagent used for testing fluoride ion in water [EAMCET 2003]
A)
Alizarin - S done
clear
B)
Quinalizarin done
clear
C)
Phenolphthalein done
clear
D)
Benzene done
clear
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question_answer10)
Chloropicrin is used as [UPSEAT 2000]
A)
Solvent done
clear
B)
Anaesthetic done
clear
C)
Perfume done
clear
D)
Tear gas done
clear
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question_answer11)
Which is used in the manufacture of plastic
A)
\[C{{H}_{2}}=CHCl\] done
clear
B)
\[CH\equiv CH\] done
clear
C)
\[C{{H}_{2}}=CH-C{{H}_{2}}I\] done
clear
D)
\[CC{{l}_{4}}\] done
clear
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question_answer12)
Freon (dichlorodifluoro methane) is used [CPMT 1986; DPMT 1983; CBSE PMT 2001]
A)
As local anaesthetic done
clear
B)
For dissolving impurities in metallurgical process done
clear
C)
In refrigerator done
clear
D)
In printing industry done
clear
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question_answer13)
Which of the following is known as freon which is used as a refrigerant [DPMT 1982; CPMT 1979, 81, 89; AFMC 1995; Manipal MEE 1995; MP PET 1995, 2004]
A)
\[CC{{l}_{2}}{{F}_{2}}\] done
clear
B)
\[CHC{{l}_{3}}\] done
clear
C)
\[C{{H}_{2}}{{F}_{2}}\] done
clear
D)
\[C{{F}_{4}}\] done
clear
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question_answer14)
Benzene hexachloride (BHC) is used as [MP PMT 1994; KCET 1999]
A)
Dye done
clear
B)
Antimalerial drug done
clear
C)
Antibiotic done
clear
D)
Insecticide done
clear
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question_answer15)
Which plastic is obtained from \[CHC{{l}_{3}}\] as follows \[CHC{{l}_{3}}\underset{Sb{{F}_{3}}}{\mathop{\xrightarrow{HF}}}\,X\underset{{}}{\mathop{\xrightarrow{{{800}^{o}}C}}}\,Y\underset{{}}{\mathop{\xrightarrow{Polymerisation}}}\,\text{Plastic}\]
A)
Bakelite done
clear
B)
Teflon done
clear
C)
Polythene done
clear
D)
Perspex done
clear
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question_answer16)
\[\underset{\underset{H}{\mathop{|}}\,}{\mathop{C}}\,-CC{{l}_{3}}\]. The above structural formula refers to [MP PET 1997]
A)
BHC done
clear
B)
DNA done
clear
C)
DDT done
clear
D)
RNA done
clear
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question_answer17)
The commercial uses of DDT and benzene hexachloride are
A)
DDT is a herbicide, benzene hexachloride is a fungicide done
clear
B)
Both are insecticides done
clear
C)
Both are herbicides done
clear
D)
DDT is a fungicide and benzene hexachloride is a herbicide done
clear
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question_answer18)
Which of the following is used in fire extinguishers [AFMC 1993]
A)
\[C{{H}_{4}}\] done
clear
B)
\[CHC{{l}_{3}}\] done
clear
C)
\[C{{H}_{2}}C{{l}_{2}}\] done
clear
D)
\[CC{{l}_{4}}\] done
clear
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question_answer19)
Iodoform can be used as [NCERT 1981]
A)
Anaesthetic done
clear
B)
Antiseptic done
clear
C)
Analgesic done
clear
D)
Antifebrin done
clear
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question_answer20)
Which of the following is an anaesthetic [AFMC 1989]
A)
\[{{C}_{2}}{{H}_{4}}\] done
clear
B)
\[CHC{{l}_{3}}\] done
clear
C)
\[C{{H}_{3}}Cl\] done
clear
D)
\[{{C}_{2}}{{H}_{5}}OH\] done
clear
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question_answer21)
An important insecticide is obtained by the action of chloral on chlorobenzene. It is [KCET 1989]
A)
BHC done
clear
B)
Gammexene done
clear
C)
DDT done
clear
D)
Lindane done
clear
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question_answer22)
In fire extinguisher, pyrene is [DPMT 1985]
A)
\[C{{O}_{2}}\] done
clear
B)
\[CC{{l}_{4}}\] done
clear
C)
\[C{{S}_{2}}\] done
clear
D)
\[CHC{{l}_{3}}\] done
clear
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question_answer23)
B.H.C. is used as [Pb. CET 2002]
A)
Insecticide done
clear
B)
Pesticide done
clear
C)
Herbicide done
clear
D)
Weedicide done
clear
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question_answer24)
The use of the product obtained as a result of reaction between acetone and chloroform is [RPMT 1999]
A)
Hypnotic done
clear
B)
Antiseptic done
clear
C)
Germicidal done
clear
D)
Anaesthetic done
clear
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question_answer25)
Use of chlorofluoro carbons is not encouraged because [KCET 2005]
A)
They are harmful to the eyes of people that use it done
clear
B)
They damage the refrigerators and air conditioners done
clear
C)
They eat away the ozone in the atmosphere done
clear
D)
They destroy the oxygen layer done
clear
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