|
What is the law of Multiple Proportions. Explain giving examples
|
|
0
|
4433
|
August 9, 2016
|
|
What weight of iodine is liberated from a solution of potassium iodide when 1 litre of $C{{l}_{2}}$ gas at 10°C and 750 mm pressure is passed through it?
|
|
0
|
4283
|
August 9, 2016
|
|
What is limiting reactant?
|
|
1
|
1920
|
August 9, 2016
|
|
Two oxides of the metal contain 27.6 % and 30.0 % of oxygen respectively, If the formula of the first oxide is $M_{3}O_{4}$, find that of the second
|
|
0
|
5802
|
August 9, 2016
|
|
Calculate the volume of 0.05 KMn${{O}_{4}}$ solution re-quired to oxidise completely 2.70 g of oxalic acid in acidic solution
|
|
0
|
1022
|
August 9, 2016
|
|
The mass of precious stones is expressed in term of 'carat'
|
|
1
|
3081
|
August 9, 2016
|
|
The reactant which is entirely consumed in reaction is known as limiting reagent. In the reaction
|
|
1
|
5410
|
August 9, 2016
|
|
Explain Dalton's atomic theory of matter on the basis of law of chemical combination and other related chemical observations
|
|
0
|
1471
|
August 9, 2016
|
|
If ten volume of dihydrogen gas reacts with five volume of dioxygen gas, how many volumes of water vapour would be produced?
|
|
0
|
784
|
August 9, 2016
|
|
Calculate the amount of water (g) produced by the combustion of 16g of methane
|
|
0
|
14700
|
August 9, 2016
|
|
The water level in a metric measuring cup is 0.75 L before the addition of a pebble weighing 150 g. The water level after submerging the pebble is 0.82 L
|
|
1
|
3339
|
August 9, 2016
|
|
Which one of the following will have largest number of atoms?
|
|
1
|
3379
|
August 9, 2016
|
|
What is the SI unit of mass ? How is it defined?
|
|
0
|
5702
|
August 9, 2016
|
|
Pressure is determined as force per unit area of the surface. The SI unit of pressure, pascal is as shown below:
|
|
1
|
6798
|
August 9, 2016
|
|
50.0 kg of $N_{2}$(g) and 10.0 kg of $H_{2}$ (g) are mixed to produced N$H_{3}$ (g). Calculate the N$H_{3}$(g) formed
|
|
1
|
585
|
August 9, 2016
|
|
What mass of silver nitrate will react with 5.85 g of sodium chloride to produce 14.35 g of silver chloride and 8.5 g of sodium nitrate, if the law of conservation of mass is true?
|
|
0
|
11153
|
August 9, 2016
|
|
If the speed of light is 3-0 x 10^{8} $m{{s}^{-1}}$, calculate the distance covered by light in 2.00 ns
|
|
0
|
822
|
August 9, 2016
|
|
Calculate the mass of one litre of mercury in grams and kilograms if the density of liquid mercury is 13.6 g $c{{m}^{-3}}$
|
|
0
|
6585
|
August 9, 2016
|
|
How many number of atoms are present in 52u of He?
|
|
0
|
6907
|
August 9, 2016
|
|
How many significant figures should be present in the answer of the following calculations?
|
|
1
|
2428
|
August 9, 2016
|
|
What do you mean by the term molecule?
|
|
0
|
455
|
August 9, 2016
|
|
Explain the term element
|
|
0
|
494
|
August 9, 2016
|
|
How can you explain chemistry by the flow chart?
|
|
0
|
2078
|
August 9, 2016
|
|
How many types of units used for describing measurement of various physical quantities?
|
|
0
|
422
|
August 9, 2016
|
|
What is the meaning of central science in chemistry?
|
|
0
|
1187
|
August 9, 2016
|
|
Write the empirical formulae of the following:Glucose Borazine
|
|
1
|
1029
|
August 9, 2016
|
|
Explain relevance of inter generational equity in the definition of sustainable development
|
|
0
|
742
|
August 6, 2016
|
|
State any four pressing environmental concerns of India. Correction for environmental damages involves opportunity costs. Explain
|
|
1
|
1843
|
August 6, 2016
|
|
Explain carrying capacity of environment with examples
|
|
0
|
3530
|
August 6, 2016
|
|
Is environmental crisis a recent phenomenon? If so, why?
|
|
0
|
2602
|
August 6, 2016
|