CBSE Class 12 Chemistry pdf test papers

CBSE Class 12 Chemistry Chemical Kinetics Important Questions and Answers

 
ANSWER THE FOLLOWING QUESTIONS

1. Define average rate and instantaneous rate.

UNIT-7 CHEMICAL KINETICS Table

 


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CBSE Class 12 Chemistry Solid State Important Questions and Answers

I-TEXT BOOK QUESTION AND ANSWERS

1. Define unit cell.
A basic repeating structural unit of a crystalline solid is called a unit cell.
 
2. Give any three characteristics of ionic crystals.
• Ionic solids have high melting points.
• They do not conduct electricity in solid state.
• They conduct electricity in molten state (or) when dissolved in water.

 


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CBSE Class 12 Chemistry Coordination Chemistry Important Questions and Answers

Answer the following questions:
 
1. Write the IUPAC names for the following complexes.

i) Na2[Ni (EDTA )]               - Sodium 2,2’,2’’,2’’’-(ethane-1,2-diyldinitrilo)tetraacetatoNickelate(II)
ii) [Ag (CN)2]-                    -dicyanidoargentate(I) ion
iii) [Co (en)3]2(SO4)3         -tris(ethane1,2-diamine)cobalt(III)sulphate

 


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CBSE Class 12 Chemistry Transition and Inner Transition Elements Important Questions and Answers

I. Text book question and Answer:

1. What are transition metals? Give four examples
Transition metal as an element whose atom has an incomplete d sub shell or which can give rise to cations with an incomplete d sub shell. Example : Iron, Cobalt, Nickel, Copper.
 
2. Explain the oxidation states of 4d series elements.

 


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CBSE Class 12 Chemistry P Block Elements II Important Questions and Answers

I-   Text Book Question & Answer

1. What is inert pair effect?

In heavier post transition metals, the outermost electrons (ns) have a tendency to remain inert and show reductance to take part in the bonding which is known as inert pair effect.
 

 


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CBSE Class 12 Chemistry P Block Elements I Important Questions and Answers

Answer the following question:

 


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CBSE Class 12 Chemistry Metallurgy Important Questions and Answers

UNIT – 1 
METALLURGY

 
1. What is the difference between minerals and ores?
 
UNIT – 1 METALLURGY

 


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CBSE Class 12 Chemistry The P Block Elements Worksheet Set B

CBSE Class 12 Chemistry The p block elements. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations.

 


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CBSE Class 12 Chemistry The D And F Block Elements Worksheet

CBSE Class 12 Chemistry The d and f block elements. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations.

 


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CBSE Class 12 Chemistry Surface Chemistry Worksheet Set A

CBSE Class 12 Chemistry Surface Chemistry. CBSE issues sample papers every year for students for class 12 board exams. Students should solve the CBSE issued sample papers to understand the pattern of the question paper which will come in class 12 board exams this year. The sample papers have been provided with marking scheme. It’s always recommended to practice as many CBSE sample papers as possible before the board examinations.

 


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