CBSE Class 12 Chemistry 2014 Previous Year Board Question Paper (Theory)
This is the CBSE Class 12 Chemistry (Theory) Previous Year Question Paper from the 2014 Main Exams, Delhi-Set-3, conducted in Hindi. The paper is designed for board exam practice and carries a maximum of 70 marks, with a duration of 3 hours. It comprises 30 questions divided into different sections based on marks. Questions 1 to 8 are very short-answer type carrying 1 mark each. Questions 9 to 18 are short-answer type carrying 2 marks each. Questions 19 to 27 are also short-answer type carrying 3 marks each. Finally, questions 28 to 30 are long-answer type carrying 5 marks each. Candidates are allowed to use Log Tables but calculators are not permitted. Solving this previous year paper helps students understand the exam pattern, question types, and marks distribution, thereby improving their preparation and performance in the 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 paper has 30 questions divided into four sections: 8 very short-answer (1 mark each), 10 short-answer (2 marks each), 9 short-answer (3 marks each), and 3 long-answer (5 marks each).
Topics covered
Paper topics
- Lyophobic and Lyophilic sols
- IUPAC nomenclature
- Intermolecular forces
- Complex stability
- Basic strength of amines
- Hydrolysis of sucrose
Important topics
- Lyophobic and Lyophilic sols
- IUPAC nomenclature
- Intermolecular forces
- Complex stability
- Basic strength of amines
- Hydrolysis of sucrose
PDF preview
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Question paper text
रोल नं.
Series : OSR/1 Code No. 56/1/3 कोड नं.
परीक्षार्थी कोड को उत्तर-पुस्तिका के मुख-पृष्ठ
पर अवश्य लिखें ।
Candidates must write the Code on
the title page of the answer-book.
Roll No.
कृपया जाँच कर लें कि इस प्रश्न-पत्र में मुद्रित पृष्ठ 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 पूर्वाह्न में 10.15 बजे किया जायेगा । 10.15 बजे से 10.30 बजे तक छात्र केवल प्रश्न-पत्र पहेंगे 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 (सैद्धान्तिक)
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.
56/1/3 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.
- द्रव विरोधी सॉल और द्रव स्नेही सॉल का एक-एक उदाहरण लिखें। Give one example each of lyophobic sol and lyophilic sol.
- यौगिक CH<sub>3</sub> - CH - CH<sub>2</sub> - C - CH<sub>3</sub><br>| | | | OH O
का IUPAC नाम लिखें।
Write the IUPAC name of the compound.
<math>CH_3 - CH - CH_2 - CH_3 - CH_3</math> OH 0
- मेथेनॉल और ऐसीटोन युग्म में कौन सा अन्तर-अणुक आकर्षक प्रभाव क्रियाकारी होता है ?
1 What type of intermolecular attractive interaction exists in the pair of methanol and acetone?
- निम्न संकरों में से कौन सा अधिक स्थायी होता है और क्यों ?
1 [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>
- इन यौगिकों को क्षारिक बल के बढ़ते क्रम में पुन: व्यवस्थित कीजिये : Arrange the following in increasing order of basic strength:
<math>C_6H_5NH_2</math>, <math>C_6H_5NHCH_3</math>, <math>C_6H_5N(CH_3)</math>,
- सूक्रोज के जलीय विघटन के क्रियाफलों के नाम लिखें। 1
Name the products of hydrolysis of sucrose. 56/1/3 ₹2
Frequently asked questions
What is this document?
This is the CBSE Class 12 Chemistry (Theory) 2014 Previous Year Board Question Paper for the Main Exams, Delhi-Set-3, in Hindi.
What is the total marks and duration for the exam?
The Chemistry exam is for a maximum of 70 marks and the allowed time is 3 hours.
How are the questions structured in this paper?
The paper contains 30 questions categorized into very short-answer (1 mark), short-answer (2 and 3 marks), and long-answer (5 marks) types.
Can I use a calculator for this paper?
No, the use of calculators is not allowed, but you may use Log Tables if necessary.
How does solving previous year papers help students?
Solving previous year question papers helps students understand the board pattern, question types, and marks distribution, thereby improving their preparation and performance in the board examinations.
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