201.
6 litres of oxygen at NTP is equivalent of
A
1/4 Mole
B
1/8 mole
C
1 mole
D
1/2 mole
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6 litres of oxygen at NTP is equivalent of
1/4 Mole
1/8 mole
1 mole
1/2 mole
6 litres of gas at N.T.P are found to have a mass of 11 g. The molecular mass of the gas is
88
32
22
44
0 litre of 0.4 M Contains
5.0 mole
2.0 moles
2.0 Mole Of
0.4 mole
5 moles of a gas in closed vessel was heated from 300 K to 600 K. the pressure of gas doubled The number of moles of the gas will be
10
20
5
2.5
4 litres of water vapour at NTP, when condensed to water, occupies an approximate volume of
1 mL
18 ml
18 litres
1 litre
0 g of oxygen contains number of atoms same as in
0.5 g of
12.3 g of Na.
4g of s
7g of nitrogen
2 moles of H atoms at NTP occupy a volume of
2 litres
22.4 litres
11.2 litres
44.8 litres
2 Litres of a gas at STP weighs 14g. The gas could not be
CO
2 litre of a gas at STP weighs 14 g. The gas could not be
CO
100 g caco3 is treated with I litre of 1N . What would be the weight of co2 libereted after the completion of the reaction ?
22g
33g
5.5 g
11g
224 L of gas at S.T.P is equivalent to
molecules
0.01 mol
1 mol
1g
Which one of the following statements is incorect ?
One mole of hydrogen contains Avogadros number of atoms
One mole of electrons stands for 6.02x1023 electrons
One gram atom of carbon contains avogadros number of atoms
One mole of oxygen gas contains Avogadros number of atoms
Final structure of austempered steel
Pearlite
Ferrite + graphite
Bainite
Martensite
Not an important heat treatment process parameter
Heating rate
Temperature
Cooling rate
Atmosphere
Prime structural disadvantage of P/M products
Low density
Porosity
High damping capacity
None
Usual casting method for making dental crowns
Sand casting
Die casting
Continuous casting
Investment casting
Noble metal
Al
Ag
Mo
W
Not a noble meta
Cu
Ag
Au
Pt
Refractory metal
Ag
W
Pt
Ni
In white cast irons, carbon present as...................
Graphite flakes
Graphite nodules
Cementite
Carbon does not exist