CBSE Class 12 Chemistry Sample paper 2015 Solved Set E

Read and download PDF of CBSE Class 12 Chemistry Sample paper 2015 Solved Set E designed as per the latest curriculum and examination pattern for Class 12 issued by CBSE, NCERT and KVS. The latest Class 12 Chemistry Sample Papers have been provided with solutions so that the students can solve these practice papers and then compare their answers. This will help them to identify mistakes and improvement areas in Chemistry Class 12 which they need to study more to get better marks in Class 12 exams. After solving these guess papers also refer to solved Class 12 Chemistry Question Papers available on our website to build strong understanding of the subject

Sample Paper for Class 12 Chemistry Pdf

Students can refer to the below Class 12 Chemistry Sample Paper designed to help students understand the pattern of questions that will be asked in Class 12 exams. Please download CBSE Class 12 Chemistry Sample paper 2015 Solved Set E

Chemistry Class 12 Sample Paper

 

Q. 1. A cubic solid is made of 2 elements P & Q are at the corners of the cube & P at the body centre. What is the formulae of the compound ? What are the coordination no. of P & Q ?

Ans.

CBSE Class 12 Chemistry Sample Paper SA2 2015 (2)

At the corners each atom is equal to 1/8

∴total Q =1/8 × 8 = 1 atom

∴formula is PQ

Cordination No. is 8 : 8.

Q. 2. Name one important catalyst used in petroleum industry. For what purpose it is used for ?

Ans. It is ZSM–5. It converts alcohol directly into gasoline.

Q. 3. Give the hybridisation and shape of XeF4.

Ans.

 CBSE Class 12 Chemistry Sample Paper SA2 2015 (2)1






 

Sp³ d² hybridisation

 

“Square planar shape”.

 

Q. 4. Zn, Cd, Hg are not regarded as transition elements. Why ?

 

Ans. Zn, Cd, Hg have completely filled d-orbitals in them. Hence, they are not regarded as transition elements.

 

Zn (30) = 3 d10 4 s²

 

Cd (40) = 4 d10 5 s²

 

Hg (80) = 5 d10 6 s²

 

Q. 5. Write IUPAC name of the following compounds :

 

(i) CH3 — C — CH — CH3

 

               ||      |

 

               O      Br

 

(ii) COOH

 

      |

 

     COOH

 

Ans. (i) 3-Bromo-2-butanone

 

(ii) Ethane-1, 2-dioic acid


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CBSE Class 12 Chemistry Sample paper 2015 Solved Set E

We hope you liked the above provided CBSE Class 12 Chemistry Sample paper 2015 Solved Set E. To get an understanding of the type of questions which were asked in exams, it is important for Class 12 students to understand the way sample Paper are set by teachers. Students can download the Sample Paper for Class 12 Chemistry which will be coming in the exams so that you can practise them and solve all types of questions that can be asked in exams. By doing CBSE Class 12 Chemistry Sample paper 2015 Solved Set E you will understand the regular questions and MCQ questions for Class 12 Chemistry which are always asked. You can download CBSE Class 12 Chemistry Sample Paper and Class 12 Chemistry Question Papers in PDF. You should attempt all the last year question paper for Class 12 and Class 12 Chemistry MCQ Test in examination conditions at home and then compare their answers with the solutions provided by our teachers.

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