Chemistry - Online Test
Q1. The basic structural unit of silicates is
Answer : Option D
Explaination / Solution:
No Explaination.
Q2. The
most effective electrolyte for the coagulation of As2 S3Sol
is
Answer : Option D
Explaination / Solution:
As2S3
is a -vely charged colloid. It will be
most effectively coagulated by the cation
with greater valency. i.e., Al3+ .
Q3. The molarity of given orthophosphoric acid solution is 2M. its normality is
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. (CH3
)3 - C - CH(OH) CH3 -----Con H2 SO4→ X (major product)
Answer : Option B
Explaination / Solution:
Q5. The alloy of copper that contain Zinc is
Answer : Option D
Explaination / Solution:
Brass contains 70% Cu + 30% Zn
Q6. Benzoic
acid 
'C' is
'C' is
Answer : Option C
Explaination / Solution:
Q7. In which of the following
coordination entities the magnitude of Δ0 will be maximum?
Answer : Option A
Explaination / Solution:
In all the complexes, the
central metal ion is Co3+, among the given ligands CN− is
the strongest ligand, which causes large crystal field splitting i.e maximum ∅0
Q8. Which of the following reaction is not correct.
Answer : Option B
Explaination / Solution:
p –
nitrosation takes places, the product is 
Q9. In a solid atom M occupies ccp lattice and (1/3) of tetrahedral voids are occupied by atom N. find the formula of solid formed by M and N.
Answer : Option D
Explaination / Solution:
if the total number of M atoms is n,
then the number of tetrahedral voids
=2n
given that (1/3)rd of
tetrahedral voids are occupied i.e., (1/3)x2n are occupied i.e., by N atoms
∴ M:N ⇒ n : (2/3) n
1 : (2/3)
3 : 2 ⇒ M3 N2
Q10. The correct statement regarding RNA and DNA respectively is
Answer : Option D
Explaination / Solution:
No Explaination.
