Chemistry - Online Test

Q1. Which one of the following structures represents nylon 6,6 polymer?
Answer : Option D
Explaination / Solution:
No Explaination.


Q2. Conjugate base for Bronsted acids H2O and HF are
Answer : Option C
Explaination / Solution:

H2O + H2O H3O+ + OH-

acid 1 + base 1 acid 2 + base 2


HF + H2O H3O+ + F-

acid 1 + base 1 acid 2 + base 2

Conjugate bases are OH- and F- respectively


Q3. Which of the metal is extracted by Hall-Heroult process?
Answer : Option A
Explaination / Solution:
No Explaination.


Q4.
Calculate ΛºHOAC using appropriate molar conductances of the electrolytes listed above at infinite dilution in water at 25oC .
Answer : Option C
Explaination / Solution:

( Λº )HoAC = ( Λº)HCl + ( Λº)NaOAC - ( Λº)NaCl

= (426.2 + 91) (126.5)

= 390.7


Q5. In diborane, the number of electrons that accounts for banana bonds is
Answer : Option C
Explaination / Solution:

There are two 3c – 2e-bonding in the bridges account for 4 electrons.

Q6. Statement : To stop bleeding from an injury, ferric chloride can be applied. Which comment about the statement is justified?
Answer : Option B
Explaination / Solution:
No Explaination.


Q7. On hydrolysis, PCl3 gives
Answer : Option A
Explaination / Solution:
No Explaination.


Q8.  on treatment with Con H2 SO4 , predominately gives
Answer : Option B
Explaination / Solution:



Q9. Which of the following compounds is colourless?
Answer : Option B
Explaination / Solution:

Ti4+ contains no unpaired electrons in d orbital, hence no d-d transition.

Q10.

Predict the product Z in the following series of reactions


Answer : Option A
Explaination / Solution: