CBSE 12TH CHEMISTRY - Online Test
Q1. The polymer with the amide linkage is
Answer : Option D
Explaination / Solution:
Nylon has amide linkage.
Q2. MgO has the structure of NaCl. The coordination number of the ions in MgO is
Answer : Option D
Explaination / Solution:
Coordination No. in NaCl is 6.
Q3. The compound which is widely used as a white pigment is
Answer : Option D
Explaination / Solution:
ZnO is white in color.
Q4. The IUPAC name of KAl(SO4)2.12H2O is
Answer : Option C
Explaination / Solution:
This is double salt so name is written in sequential manner.
Q5. Anti – histamines stop allergic reactions by
Answer : Option D
Explaination / Solution:
Anti – histamines stop allergic reactions by competing with histamine for binding sites of histamine receptor.
Q6. Which of the following reagents can be used to convert a carboxylic acid directly into its corresponding acid chloride derivative?
Answer : Option B
Explaination / Solution:
Q7. Li occupies higher position in the electrochemical series of metals as compared to Cu since
Answer : Option A
Explaination / Solution:
Li is alkali metal /Li = -3.045V.``
Q8.
IUPAC name of (CH3)3CCl
Answer : Option B
Explaination / Solution:
Longest chain will be of three carbon to which Cl and CH3 will be attached at 2 position.
Q9. Order of the photochemical reaction occurring between hydrogen and chlorine is
Answer : Option B
Explaination / Solution:
Photochemical reaction between and is 0 zero wrt to reactants.
Q10. Whipped cream is an example of
Answer : Option D
Explaination / Solution:
Whipped cream is example of foam.
