I want class 12th chemistry paper 2019 can anyone help me??
Answers
Content from CBSE 12th Chemistry Paper 2019:
General Instructions:
(i) All questions are compulsory.
(ii) Section A: Q. no. 1 to 5 are very short-answer questions and carry 1 mark each.
(iii) Section B: Q. no. 6 to 12 are short-answer questions and carry 2 marks each.
(iv) Section C: Q. no. 13 to 24 are also short-answer questions and carry 3 marks each.
(v) Section D: Q. no. 25 to 27 are long answer questions and carry 5 marks each.
(vi) There is no overall choice. However, an internal choice has been provided in two questions of one mark, two questions of two marks, four questions of three marks and all the three questions of five marks weightage. You have to attempt only one of the choices in such questions. (vii) Use log tables if necessary. Use of calculators is not allowed.
Section: A
Q1. Out of NaCl and AgCl, which one shows Frenkel defect and why?
Q2. Arrange the following in increasing order of boiling points :
(CH3)3N, C2H5OH, C2H5NH2,
Q3. Why are medicines more effective in colloidal state?
OR
What is difference between an emulsion and a gel?
Q4. Define ambident Nucleophile with an example.
Q5. What is the basic structural difference between glucose and fructose?
OR
Write the products obtained after hydrolysis of lactose.
Section: B
Q6. Write balanced chemical equations for the following processes?
(i) XeF2 undergoes hydrolysis.
(ii) MnO2 is heated with conc. HCl.
OR
Arrange the following in order of property