CBSE Class 12 Chemistry 2014 Previous Year Question Paper (Delhi-Set-1)
This is the CBSE Class 12 Chemistry 2014 Main Exams Delhi-Set-1 previous year question paper. The exam paper is divided into sections with varying marks: questions 1-8 are very short answer (1 mark each), questions 9-18 are short answer (2 marks each), questions 19-27 are also short answer (3 marks each), and questions 28-30 are long answer (5 marks each). The total marks for the exam are 70, and the allowed time is 3 hours. This board question paper provides an excellent opportunity for students to practice and understand the exam pattern for their upcoming board examinations.
Quick info
| Board | CBSE |
|---|---|
| Class | 12 |
| Subject | Chemistry |
| Session | 2014 |
| Language | Hindi |
| Type | Previous Year Question Paper |
| Exam type | Board Exam |
Paper pattern
The exam paper has 30 questions divided into four sections: very short answer (1 mark each), short answer (2 marks each), short answer (3 marks each), and long answer (5 marks each). The total marks are 70, with a duration of 3 hours.
Topics covered
Paper topics
- Emulsions
- Copper extraction
- Coordination complexes
- IUPAC nomenclature
- Isomers
- Isotonic solutions
PDF preview
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Question paper text
静之态。
Series : OSR/1
कोड नं. Code No. 56/1/1
रोल नं.
Roll No.
परीक्षार्थी कोड को उत्तर-पुस्तिका के मुख-पृष्ठ
पर अवश्य लिखें ।
Candidates must write the Code on
the title page of the answer-book.
कृपया जाँच कर लें कि इस प्रश्न-पत्र में मुद्रित पृष्ट 11 हैं ।
प्रश्न-पत्र में दाहिने हाथ की ओर दिए गए कोड नम्बर को छात्र उत्तर-पुस्तिका के मुख-पृष्ठ पर लिखें ।
कृपया जाँच कर लें कि इस प्रश्न-पत्र में 30 प्रश्न हैं।
कृपया प्रश्न का उत्तर लिखना शुरू करने से पहले, प्रश्न का क्रमांक अवश्य लिखें।
इस प्रश्न-पत्र को पढ़ने के लिए 15 मिनट का समय दिया गया है । प्रश्न-पत्र का वितरण पूर्वाहन में 10.15 बजे किया जायेगा । 10.15 बजे से 10.30 बजे तक छात्र केवल प्रश्न-पत्र पढ़ेंगे और इस अवधि के दौरान वे उत्तर- पुस्तिका पर कोई उत्तर नहीं लिखेंगे ।
Please check that this question paper contains 11 printed pages.
Code number given on the right hand side of the question paper should be written on the title page of the answer-book by the candidate.
Please check that this question paper contains 30 questions.
Please write down the Serial Number of the question before attempting it.
15 minutes time has been allotted to read this question paper. The question paper will be distributed at 10.15 a.m. From 10.15 a.m. to 10.30 a.m., the students will only read the question paper and will not write any answer on the answer-book during this period.
रसायन विज्ञान (सेद्धान्तिक)
CHEMISTRY (Theory)
निर्धारित समय : 3 घण्टे]
∫अधिकतम अंक : 70
Time allowed: 3 hours]
[ Maximum Marks : 70
सामान्य निर्देश :
(i) सभी प्रश्न अनिवार्य हैं ।
- प्रश्न-संख्या 1 से 8 तक अति लघु-उत्तरीय प्रश्न हैं । प्रत्येक प्रश्न के लिए 1 अंक है ।
- प्रश्न-संख्या 9 से 18 तक लघु-उत्तरीय प्रश्न हैं । प्रत्येक प्रश्न के लिए 2 अंक हैं ।
- प्रश्न-संख्या 19 से 27 तक भी लघु-उत्तरीय प्रश्न हैं । प्रत्येक प्रश्न के लिए 3 अंक हैं ।
- प्रश्न-संख्या 28 से 30 दीर्घ-उत्तरीय प्रश्न हैं । प्रत्येक प्रश्न के लिए 5 अंक हैं ।
- आवश्यकतानुसार लॉग टेबलों का प्रयोग करें । कैल्कुलेटरों के उपयोग की अनुमित नहीं है ।
[P.T.O. 1 56/1/1
General Instructions:
- All questions are compulsory.
- Question numbers 1 to 8 are very short-answer questions and carry 1 mark each.
- Question numbers 9 to 18 are short-answer questions and carry 2 marks each.
- Question numbers 19 to 27 are also short-answer questions and carry 3 marks each.
- Question numbers 28 to 30 are long-answer questions and carry 5 marks each.
- Use Log Tables, if necessary. Use of calculators is not allowed.
- ‘जल में तेल’ और ‘तेल में जल’ प्रकार के इमल्शनों का एक-एक उदाहरण दीजिये । Give one example each of 'oil in water' and 'water in oil' emulsion.
- निक्षलित न्यून ग्रेड के कॉपर के अयस्क से कॉपर की प्राप्ति के लिये कौन से अपचायक का उपयोग किया जाता है ? 1 Which reducing agent is employed to get copper from the leached low grade copper ore?
- निम्न संकरों में से कौन सा अधिक स्थायी होता है और क्यों ?
[Co(NH<sub>3</sub>)<sub>6</sub>]<sup>3+</sup> और [Co(en)<sub>3</sub>]<sup>3+</sup>
Which of the following is more stable complex and why?
<math>[Co(NH_3)_6]^{3+}</math> and <math>[Co(en)_3]^{3+}</math>
- इस यौगिक का IUPAC नाम लिखिये :
<math>CH_3 - CH - CH_2 - COOH</math> OH
Write the IUPAC name of the compound.
<math>CH_3 - CH - CH_2 - COOH</math> OH
- इन आइसोमरों (सम-अवयवियों) में से कौन सा अधिक वाष्पशील है ? 1
- नाइट्रोफ़िनॉल और p-नाइट्रोफ़िनॉल Which of the following isomers is more volatile:
- nitrophenol or p-nitrophenol?
- समपरासारी (आइसोटोनिक) विलयन क्या होते हैं ? What are isotonic solutions?
56/1/1 2
Frequently asked questions
What is the structure of this CBSE Class 12 Chemistry previous year question paper?
The paper contains 30 questions divided into very short answer (1 mark), short answer (2 marks), short answer (3 marks), and long answer (5 marks) types, totaling 70 marks.
What is the time duration for the CBSE Class 12 Chemistry 2014 exam?
The allowed time for the CBSE Class 12 Chemistry 2014 exam is 3 hours.
How can solving this previous year question paper help students?
Solving this previous year question paper helps students understand the exam pattern, question types, and marking scheme, thereby improving their preparation and confidence for the board exams.
What is the total marks for the CBSE Class 12 Chemistry 2014 paper?
The maximum marks for the CBSE Class 12 Chemistry 2014 paper are 70.
Are calculators allowed in the CBSE Class 12 Chemistry exam?
No, the use of calculators is not allowed in the CBSE Class 12 Chemistry exam. Students may use Log Tables if necessary.
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