Chemistry - Online Test
Q1. For Freundlich isotherm a graph of log (x/m) is plotted against log p. The slope of the line and its y – axis intercept respectively corresponds to
Answer : Option C
Explaination / Solution:
x/m =k.p1/n
log(x/m )=logk+ 1/ n logp
y=c+mx
m = 1/n and c= logk
Q2. An
alcohol (x) gives blue colour in Victormeyer’s test and 3.7g of X when treated
with metallic sodium liberates 560 mL of hydrogen at 273 K and 1 atm pressure
what will be the possible structure of X?
Answer : Option A
Explaination / Solution:
2 R - OH + 2Na→ 2 RONa + H2↑2 moles of alcohol gives 1 mole of H2
which occupies 22.4L at 273K and 1 atm
∴ number of moles of alcohol = ( 2
moles of R - OH / 22.4 L of H2 ) × 560 mL
= 0.05 moles
∴ no. of moles = mass / molar mass
⇒ molar mass = 3.7/0.05 = 74 g mol−1
General
formula for R - OH Cn H2n+1 - OH
∴ n(12) + (2n+1) (1) + 16+1=74
14n = 74 – 18
14n = 56
∴ n = 56/14 = 4
The 2 alcohol which contains 4
carbon is CH2 CH(OH)CH2CH3
Q3. In leech locomotion is performed by
Answer : Option D
Explaination / Solution:
No Explaination.
Q4. Active transport involves
Answer : Option D
Explaination / Solution:
No Explaination.
Q5. The
correct structure of the product ‘A’ formed in the reaction 
is
is
Answer : Option B
Explaination / Solution:
No Explaination.
Q6. Bipolar neurons are found in
Answer : Option A
Explaination / Solution:
No Explaination.
Q7. Gibberellins cause:
Answer : Option B
Explaination / Solution:
No Explaination.
Q8. Which of the following reagent can be used to convert nitrobenzene to aniline
Answer : Option A
Explaination / Solution:
No Explaination.
Q9. The plant which propagates with the help of its leaves is ___________.
Answer : Option D
Explaination / Solution:
No Explaination.
Q10. Which one of the following rotates the plane polarized light towards left?
Answer : Option C
Explaination / Solution:
No Explaination.
