Which acid is used in an acid battery hydrometer?
H2SO4
Hcl
HNO3
NO3
Find out correct expression.
Density of water is
1000 gcm-3
1 kgm-3
1 gcm-3
None of these
Relative density of silver is 10.5. What is the density of silver in SI unit?
10.5 × 103 kgm-3
10 kgm-3
10.5 kgm-3
10.3 kgm-3
SI unit of upthrust is
Pa
N
Kg
Kgm2
1 Pa =
1 Nm
1 N
1 Nm-2
0.5 Nm-2
Find expression for density.
ρ = M V
ρ = M + V
The unit torr is related to the barometric height as
1 torr = 1 cm of Hg
1 torr = 0.76 m of Hg
1 torr = 1mm of Hg
1 torr = 1m of Hg
The normal atmospheric pressure is
76m of Hg
76cm of Hg
79 Pa
76 Nm-2
Unit of relative density is
gcm-3
No unit
Kgm-3
