Chemistry - Online Test
Q1. Reaction of acetone with one of the following reagents involves nucleophilic addition followed by elimination of water. The reagent is
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. In reflex action, the reflex arc is formed by
Answer : Option D
Explaination / Solution:
No Explaination.
Q3. Which one of the following hormones is naturally not found in plants:
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Which one of the following will not undergo Hofmann bromamide reaction
Answer : Option A
Explaination / Solution:
only primary amides undergo hoffmann bromamide reaction
Q5. Syngamy results in the formation of _________ .
Answer : Option C
Explaination / Solution:
No Explaination.
Q6. Which one given below is a non-reducing sugar?
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. Drugs that bind to the receptor site and inhibit its natural function are called
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. The
solubility of BaSO4 in water is 2.42 ×10-3
gL-1 at 298K. The value of its solubility product ( Ksp )
will be. (Given molar mass of BaSO4 =233g mol-1 )
Answer : Option C
Explaination / Solution:
BaSO4
↔ Ba2+
+SO42-
Ksp
=(s) (s)
Ksp =(s)2
= ( 2.42×10-3 g L-1
)2
= ( 2.42×10-3 g L-1
/ 233g mol-1 )
= ( 0.01038×10-3 )
2
= (1.038×10-5 )2
= 1.077×10-10
= 1.08×10-10 mol2
L-2
Q9.
The button cell used in watches function as follows
Answer : Option C
Explaination / Solution:
Anodic
oxidation: (Reverse the given reaction)
( Eoox ) = 0.76V cathodic reduction
∴ Ecell = ( Eoox )+ ( Eredo )
= 0.76 + 0.34 = 1.1V
= 1.1V
Q10. Fog is colloidal solution of
Answer : Option C
Explaination / Solution:
dispersion
medium-gas dispersed phase-liquid
