Jammu and Kashmir Board of school education class 11th guess paper for Annual Regular exam, session 2023-24. Guess paper is based on New syllabus pattern released by J&K State Board of School education.
JKBOSE Chemistry Guess Paper 2024
1 marks Questions
Q1. Define Molecular Mass
Q2 Calculate the number of moles in 4 or of moles in n 44.8litres of H, at S.T.P.
Q3 Name the type of hybridization in diamond.
Q4. Give the formula of Diborane.
Q.5. Name the Hybridisation in Ethyne.
- Define Gram Atomic Mass,
- Calcutta the number of of mok moles in 9 gm of water. Draw the structure of graphite.
- Give the formula of Borax. Define Atomic Mass.
- What are the number of molecules in 11.2 litres of a gas at S.T.P.?
- Draw the structure of diamond.
- Give two uses of Aluminium,
- Write the formula of the compound Nickel (II)sulphate?
- The following reaction is an example of a OFH9ONDOSHN
- Displacement reaction
- (2) Combination reaction () Redox reaction
- (iv) Neutralisation reaction
- Give the values for principal quantum and magnetic quantum number for 19th electron ofK What shapes are associated with sp’d and ap’d hybrid orbitals? (Potassium). 2A +B 40(g)+He
- What is the effect of adding He a constant volume on above equilibrium?
Q.25. Differentiate between Sigma bond and Pi bond.
Or
Discuss VSEPR theory.
Q.26. State and explain law of Mass Action.
Explain:
(1)pH
(ii) Common Ion effect.
Q27. Explain the mechanism of addition reactions in Alkenes.
Discuss the effect of functional groups in Mono substituted Benzene.
State and explain Charles’ law. How does it lead to the concept of absolute zero? What are the applications of this law?
What are ideal and real gases? What are the reasons for the deviation of real gases from ideal behaviour? Describe in detail manufacture of sodium carbonate by Solvay process. State the principles involves in this process.
Name alkali metals. Give their electronic configuration. Discuss the trends in the following properties of group 1 elements (alkali metals):
- lonisation enthalpy
- Basic character of hydroxides.
- Basic Character of hydroxides: Alkali metals form hydroxides of
Define and explain inductive effect. How does it explain the relative strength of carboxlylic acids and basic nature of amines?
Explain the following reactions with one example in each case:(1) Elimination reaction(2 ) Addition reaction
How are alkenes prepared from alcohols? How does propene react with HBr (no perxoides) and Hâ‚‚O in presence of Hâ‚‚SOâ‚„? State the rule which is used while writing these reactions.
Explain with suitable reactions: Friedal-Craft reaction(2) Peroxide effect(i) Acidic nature of alkynes
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