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class xii chemistry chapter Amines

Class xii  Subject :- Chemistry  Chapter :- Amines  INTEXT QUESTIONS  Question 1: Classify the following amines as primary, secondary, or tertiary amines: (i) Naphthylamine (–NH2 attached to naphthalene ring) (ii) N,N-dimethylnaphthylamine (–N(CH3)2 attached to naphthalene ring) (iii) (C2H5)2CHNH2 (iv) (C2H5)2NH Answer: (i) Primary amine (ii) Tertiary amine (iii) Primary amine (iv) Secondary amine प्रश्न 1: निम्नलिखित ऐमीनों को प्राथमिक, द्वितीयक या तृतीयक ऐमीनों में वर्गीकृत कीजिए: (i) नाफ्थाइलऐमीन (नैफ्थलीन रिंग से जुड़ा –NH2) (ii) N,N-डाइमेथाइल नाफ्थाइलऐमीन (नैफ्थलीन रिंग से जुड़ा –N(CH3)2) (iii) (C2H5)2CHNH2 (iv) (C2H5)2NH उत्तर: (i) प्राथमिक ऐमीन (Primary amine) (ii) तृतीयक ऐमीन (Tertiary amine) (iii) प्राथमिक ऐमीन (Primary amine) (iv) द्वितीयक ऐमीन (Secondary amine) 13.2 Write structures of different isomeric amines corresponding to the molecular formula C₄H₁₁N. Write IUPAC names of all the isomers. What type of isomerism is exhibited by different pairs of amin...
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class xii chemistry chapter Haloalkanes and Haloarenes

Class xii  Subject :- Chemistry  Chapter :- Haloalkanes and Haloarenes INTEXT QUESTIONS  QUESTION 6.1 Write structures of the following compounds: (i) 2-Chloro-3-methylpentane (ii) 1-Chloro-4-ethylcyclohexane (iii) 4-tert. Butyl-3-iodoheptane (iv) 1,4-Dibromobut-2-ene (v) 1-Bromo-4-sec. butyl-2-methylbenzene Answer :-  (i) 2-Chloro-3-methylpentane Structure: CH3–CH(Cl)–CH(CH3)–CH2–CH3 (ii) 1-Chloro-4-ethylcyclohexane Structure: Cyclohexane ring C-1 → Cl C-4 → –CH2CH3 (iii) 4-tert. Butyl-3-iodoheptane Structure: CH3–CH2–CH(I)–CH(C(CH3)3)–CH2–CH2–CH3 (iv) 1,4-Dibromobut-2-ene Structure: Br–CH2–CH=CH–CH2–Br (v) 1-Bromo-4-sec. butyl-2-methylbenzene Structure: Benzene ring C-1 → Br C-2 → CH3 C-4 → sec-butyl प्रश्न 6.1 निम्नलिखित यौगिकों की संरचनाएँ लिखिए: (i) 2-क्लोरो-3-मेथाइल पेंटेन ii) 1-क्लोरो-4-एथिल साइक्लोहेक्सेन iii) 4- तृतीयक -ब्यूटिल-3-आयोडो हेप्टेन iv) 1,4-डाइब्रोमो-ब्यूट-2-इन v) 1-ब्रोमो-4- द्वितीयक -ब्यूटिल-2-मेथाइलबेंज़ीन उत्तर :- (i) 2-क्लोरो-3-मेथाइल पेंटेन ...
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