Chemistry-
General
Easy
Question
Generally non-metals are not lustrous. Which of the following non-metal is lustrous?
- Sulphur
- Phosphorus
- Nitrogen
- Iodine.
The correct answer is: Iodine.
Iodine is lustrous
Related Questions to study
Chemistry-
Statement–1: 
. If more Cl2 is added the equilibrium constant will decrease.
Statement–1 : Addition of inert gas to the equilibrium mixture at constant volume does not alter the equilibrium.
Statement–1: . If more Cl2 is added the equilibrium constant will decrease.
Statement–1 : Addition of inert gas to the equilibrium mixture at constant volume does not alter the equilibrium.
Chemistry-General
Chemistry-
Statement–1: For 
the equilibrium constant is ‘K’ then for 
the equilibrium constant will be 
Statement–2 : If concentration are changed to half the equilibrium constant will be halved.
Statement–1: For the equilibrium constant is ‘K’ then for the equilibrium constant will be
Statement–2 : If concentration are changed to half the equilibrium constant will be halved.
Chemistry-General
Chemistry-
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) 
C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
20.For the reaction
NH2COONH4(s) 2 NH3(g) + CO2(g)
The equilibrium constant KP = 2.9 × 10-5 atm3. The total pressure of gases at equilibrium when mole of reactant was heated will be
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
20.For the reaction
NH2COONH4(s) 2 NH3(g) + CO2(g)
The equilibrium constant KP = 2.9 × 10-5 atm3. The total pressure of gases at equilibrium when mole of reactant was heated will be
Chemistry-General
Chemistry-
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
The equilibrium constant for the reaction 2 SO2(g) + O2(g) 2 SO3(g) at 1000 K is 3.5. What would the partial pressure of oxygen gas if there are equal moles of SO2 and SO3 ?
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
The equilibrium constant for the reaction 2 SO2(g) + O2(g) 2 SO3(g) at 1000 K is 3.5. What would the partial pressure of oxygen gas if there are equal moles of SO2 and SO3 ?
Chemistry-General
Chemistry-
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
Determine KC for the reaction 
NOBr(g) from the following information at 298 K
2NO (g) N2 (g) + O2 (g) K1 = 2.4 × 1030
NOBr(g)K2 = 1.4
If the composition of the system does not change with time, the system is said to be in chemical equilibrium. It is the state in which net reaction of a system is zero. In another words we can say that in reversible reactions, a stage is reached when the rate of transformation of reactants into products equals to the rate of transformation of products into reactants. At this stage, the composition of reactants and products does not change with time. This does not mean that the reaction has ceased, as both reverse and forward reactions are still taking place but with equal rate. Such equilibria are called dynamic equilirbria.
Let us consider a reaction of the type
A (g) + B(g) C(g) + D(g)
where Kc is equilibrium constant which is equal to the ratio of the concentrations of the product to reactants
where KP is the equilibrium constant which is equal to the ratio of partial pressure of products to reactants. The relation between KP and KC is as follows.
KP = Kc(RT)Dn
Determine KC for the reaction NOBr(g) from the following information at 298 K
2NO (g) N2 (g) + O2 (g) K1 = 2.4 × 1030
NOBr(g)K2 = 1.4
Chemistry-General
Chemistry-
Which is correct about solution?
Which is correct about solution?
Chemistry-General
Chemistry-
When null C it changes to
When null C it changes to
Chemistry-General
Chemistry-
Silicon is an important constituent of
Silicon is an important constituent of
Chemistry-General
Physics-
Two waves of wavelength 1.00m and 1.01m produces 10 beats in 3s. What is the velocity of the wave?
Two waves of wavelength 1.00m and 1.01m produces 10 beats in 3s. What is the velocity of the wave?
Physics-General
Physics-
Beats are produced by two waves given by 
. The number of beats heard per second is
Beats are produced by two waves given by . The number of beats heard per second is
Physics-General
Physics-
Beats are produced by frequencies 
. The duration of time between two successive maximum or minima is equal to
Beats are produced by frequencies . The duration of time between two successive maximum or minima is equal to
Physics-General
Physics-
The equation of a progressive wave can be given by y=15 sin (660
-0.02
) cm. the frequency of the wave is
The equation of a progressive wave can be given by y=15 sin (660-0.02) cm. the frequency of the wave is
Physics-General
Physics-
The equation of a wave is given by y=
. If the displacement is 5 cm at t=0, then the total phase at t=7.5s is
The equation of a wave is given by y=. If the displacement is 5 cm at t=0, then the total phase at t=7.5s is
Physics-General
Maths-
If a line makes angle α, β, g with the positive coordinates’ axes then the range of 
is
If a line makes angle α, β, g with the positive coordinates’ axes then the range of is
Maths-General
Physics-
A transverse sinusoidal wave moves along a string in positive x-direction at a speed of 10
. The wavelength of the wave is 0.5 m and its amplitude is 10.cm at a particular time t, the snap-shot of the wave is shown in figure. The velocity of point P when its displacement is 5 cm is
A transverse sinusoidal wave moves along a string in positive x-direction at a speed of 10. The wavelength of the wave is 0.5 m and its amplitude is 10.cm at a particular time t, the snap-shot of the wave is shown in figure. The velocity of point P when its displacement is 5 cm is
Physics-General
