Chemistry:2008:CBSE:[Delhi]:Set-II
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Q1
Write the IUPAC name of the following compound:
Marks:1View AnswerAnswer:
5-methyl 1,3-hexandiol -
Q2
Write a chemical reaction in which the iodide ion replaces the diazonium group in a diazonium salt.
Marks:1View AnswerAnswer:
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Q3
Name a substance that can be used as an antiseptic as well as a disinfectant. Marks:1View AnswerAnswer:
Phenol -
Q4
What causes Brownian movement in a colloidal solution? Marks:1View AnswerAnswer:
The Brownian movement in a colloidal solution is caused due to unbalances bombardment of the particles by the molecules of dispersion medium. -
Q5
In which one of the two structures,
, the bond angle has a higher value?Marks:1View AnswerAnswer:
has higher value of bond angle. -
Q6
What is the total number of atoms per unit cell in a face-centered cubic (fcc) structure?
Marks:1View AnswerAnswer:
4
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Q7
What is a primary cell? Give an example.
Marks:1View AnswerAnswer:
Those Electrochemical Cell in which irreversible electrochemical reaction take place due to which it can not be reused once it get discharged.
Example:- Dry cell -
Q8
Write the IUPAC name of the following compound:
CH3-CO-CH2-CO-CH3Marks:1View AnswerAnswer:
Pentan-2, 4-dione
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Q9
The conductivity of a 0.20 M solution of KCl at 298 K is 0.0248 S cm-1. Calculate its molar conductivity.
Marks:1View AnswerAnswer:
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Q10
List the reactions of glucose, which cannot be explained by its open chain structure. Marks:2View AnswerAnswer:
The following reactions of glucose cannot be explained by its open chain structure
1.It does not give 2,4-DNP test, Schiff’s test and does not form white
precipitate with NaHSO3 despite having –CHO group.2. The pentaacetate of glucose does not react with hydroxylamine despite
having –CHO group.
