Welcome to your P & C of OC - 6
1.
BaSO4 precipitate colour is
2.
If empirical formula = CH2 and molar mass = 56, molecular formula is
3.
Carius method is suitable for estimation of
4.
Which method uses chloroplatinic acid?
5.
BaSO4 is washed with hot water to remove
6.
Silver salt method depends on formation of
7.
Victor Meyer method is used to determine
8.
Molecular mass of Mg2P2O7 is
9.
On ignition, MgNH4PO4 converts into
10.
Ignition of MgNH4PO4 removes
11.
Pressure used in Victor Meyer method is
12.
Sulphur is finally estimated as
13.
Platinichloride method is used for
14.
Factor 62/222 represents
15.
Molecular weight of BaSO4 is
16.
Empirical formula does NOT give
17.
Empirical formula gives
18.
Phosphoric acid is precipitated using
19.
White precipitate in sulphur estimation is
20.
Molecular weight is related to vapour density by
21.
1 cm³ of H2 at NTP has mass
22.
Empirical formula is always
23.
Empirical formula mass is always
24.
Molecular mass determination is not possible for
25.
Victor Meyer method requires compound to be
26.
Phosphorus estimation by Carius method converts P into
27.
Atomic weight of silver used in calculation is
28.
Vapour density is calculated using
29.
Molecular weight of acid = equivalent weight ×
30.
The precipitate obtained in phosphorus estimation is
31.
Sulphur estimation by Carius method converts sulphur into
32.
In Victor Meyer method, correction is needed for
33.
Volume of air displaced is measured at
34.
Victor Meyer method cannot be used for
35.
Molecular formula is derived using
36.
Chloroplatinate salt contains metal
37.
Which error affects Victor Meyer method most?
38.
Percentage of phosphorus is calculated using
39.
Carius method uses sealed tube to
40.
Factor 32/233 is used to calculate
41.
Which compound is suitable for Victor Meyer method?
42.
Silver salt method is used for molecular weight of
43.
Victor Meyer apparatus measures volume of
44.
Why NH4Cl is added in magnesia mixture?
45.
Silver salt method fails for acids having
