1421. Which of the following favours the reverse reaction in the chemical equilibrium ?
A. Increasing the concentration of the reactant
B. Expulsion of the most un-one of the items at customary spans
C. Expanding the centralization of at least one of the items *
D. None of them
1422. A chemical reaction is in equilibrium when :
A. Formation of product is minimum
B. Reactants are completely transformed into products
C. Paces of forward and in reverse responses are equivalent *
D. None of them
1423. Under what conditions of temperature and pressure the formation of atomic hydrogen from molecular hydrogen will be favoured :
A. High temperature and high pressure
B. Low temperature and low pressure *
C. High temperature and low pressure
D. None of them
1424. In a lime kiln, to et higher yield of CO2 the measure that can be taken is :
A. To maintain high temperature
B. To pump out CO2 *
C. To remove CaO
D. To add more CacCO3
1425. when the rate of formation of reactants is equal to the rate of formation of products , this is known as :
A. Chemical reaction
B. Chemical equilibrium *
C. Chemical kinetics
D. None
1426. Which of the following is a characteristic of a reversible reaction ?
A. It never proceeds to completion *
B. It can be influenced by a catalyst
C. It only moves in the opposite direction.
D. Number of moles of reactants and products are equal
1427. When HPLC techniques applied to ion exchange chromatography it is known as :
A. HPLC chromatography
B. Ion exchange chromatography
C. Ion Chromatography *
D. None of them
1428. ________ defines as the ” Vapor pressure of the solution is directly proportional to mole fraction of solvent :
A. Law of thermodynamics
B. Raoult’s law *
C. Law of mass action
D. None of them
1429. Out of Cu,Ag,Fe and Zn the metal which can displace all others from their salt solution is :
A. Ag
B. Cu
C. Zn *
D. Fe
1430. The conductivity of strong electrolyte :
A. Increases on dilution slightly *
B. Does not change on dilution
C. Decreases on Dilution
D. Depends on density or electrolyte itself