Chemistry - Online Test
Q1. Carbon atoms in fullerene
with formula C60 have
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. Hair cream is
Answer : Option B
Explaination / Solution:
Emulsion dispersed phase
Q3. P4O6
reacts with cold water to give
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Carbolic acid is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. the catalytic behaviour of transition metals and their compounds is ascribed mainly due to
Answer : Option C
Explaination / Solution:
No Explaination.
Q6.
Assertion: 2,2 – dimethyl propanoic acid does not give HVZ reaction.
Answer : Option A
Explaination / Solution:
Q7. A magnetic moment of 1.73BM will be shown by one among the following
Answer : Option C
Explaination / Solution:
Q8. Aniline
+ benzoylchloride ------NaOH→C6 H5 - NH - COC6 H5 this
reaction is known as
Answer : Option C
Explaination / Solution:
No Explaination.
Q9. The number of unit cells in
8 gm of an element X ( atomic mass 40) which crystallizes in bcc pattern is (NA
is the Avogadro number)
Answer : Option B
Explaination / Solution:
in bcc unit cell,
2 atoms ≡ 1 unit cell
Number of atoms in 8g of element is ,
Number of moles = 8g / 40 g mol−1 = 0.2 mol
1 mole contains 6.023 ×1023 atoms
0.2 mole contains 0.2 × 6.023 ×1023 atoms
( 1unit cell / 2 atoms ) × 0.2 × 6.023 × 1023
6.023 ×1022 unit cells
Q10. In a protein, various amino acids linked together by
Answer : Option A
Explaination / Solution:
No Explaination.
