Explore topic-wise InterviewSolutions in Current Affairs.

If the bond dissociation energies of XY,X_(2) and Y_(2) (all diatomic molecules) are in the ratio of 1:1:0.5 and DeltaH_(f) for the formation of XY is -200 kJ mol^(-1). The bond dissociation energy of X_(2) will be

If the bond dissociation energies of XY, X_(2) and Y_(2) (all diatomic molecules) are in the ratio of 1 : 1 : 0.5 and Delta_(f) H for the formation of XY is - 200 kJ " mole"^(-1). The bond dissociation energy of X_(2) will be

If the bond dissociation energies of XY, X_(2) and Y_(2) (all diatomic molecules) are in the ratio of 1 : 1 : 0.5 and Delta_(f)H for the formation of XY is –200 kJ mol^(-1). The bond dissociation energy of X_(2) will be

If the boiling point of ethanol (molecular weight = 46) is 78^(@)C, the boiling point of diethyl ether (molecular weight = 74) is

if the atoms touching one of the reactangular planes of symmetry and one of the 4-fold axis of symmetry are removed , then formula of compound is ______

If the aufbau principle had not been followed, Ca (Z=20) would have been placed in the:

Impossible orbital among the following is

If the atomic mass of M is x , the electrochemical equivalent of M in the solution of M_(2)(SO_(4))_(3) will be

Important ore of Mg is:

If the atomic number of an element is 33, it will be placed in Mendeleev's periodic table in the :

If the anions (X) form hexagonal closed packing and cations (Y) occupy only 3/8th of octahedral voids in it, then the general formula of the compound is

Important ore of boron is ………..

Ifthe anthalpy of vaporization for water is 186.5 kJ mol^(-1), the entropy of its vaporization will be

If the amount of radioactive substance is increased three times, the number of atoms disintegrated per unit time would

Important iron ore is iron pyrite

If the amount of radioactive substance is increased three times, the number of atoms distintegrated per gram per unit time would be

If the amino group of Glycine and carboxylic acid group of Alanine undergo elimination of wter molecule, the name of the compound thus formed is

If the adsorbate is held on a surface by weak Vander Waal’s force, the adsorption process is called:

Important allotropic forms of phosphorus are white phosphorus, red phosphorus and black phosphorus. Among these which allotropic form is more reactive ? Why ?

If the activation of forward reaction In a simple chemical reaction A to B is E_(a),then what will be activation energy for reverse reaction?

Important iron ore is _____.

If the alignment of magnetic moments in a substance is in a compensatory way so as to give zero net magnetic moment, then the substance is said to be

If the activation energy is high, then the rate of the reaction is

If the activation energy is decreased by (5x) % by using a catalyst (300K) to achieve the same effectas of increasing the temperature from 300K-400K in a reaction, then find x.

Imprortant iron ore is ______ .

If the activation energy for the forward reaction is 150kJ mol^(-1) and that of the reverse reaction is 260kJ mol^(-1). What is the enthalpy change for the reaction

Important constituent of cell wall is

If the activation energy for the forward reaction is 150 kJ mol^(-1) and that of the reverse reaction is 260 kJ mol^(-1) , what is the enthalpy change for the reaction

Important allotropic forms of phosphorus are white phosphorus, red phosphorus and black phosphorus. Among these, which allotropic' form is more reactive? Why

If the activation energy for the forward reaction is 150 "kJ mol"^(-1)and that of the reverse reaction is 260 "kJ mol"^(-1), what is the enthalpy change for the reaction ?

Imino group is present in

If the absolute temperature of an ideal gas become double and pressure become half , the volume of gas would be

Imine formation using an aldehyde/ketone and primary amine is acid - catalyzed, yet the rate drops below pH 4.5. Why does the rate drop below this pH?

If the above plot is replotted at 373 K, then which of the following plots may show the correct behaviour at 373 K ?

Imines or enamines are selectively reduced to 1^(@) or 2^(@) amines with:

If the 0.05 molar solution of M^(+) is replaced by a 0.0025 molar M^(+) solution, then the magnitude of the cell potential would be

Imine derivatives of aldehyde and ketone is called as

(i)Magnetic moment of [Ag(CN)_(2)] is zero .How many unpaired electrons arepresent in this compound?(ii) 'Silver nitrate is usually supplied in brown coloured bottles. Explain.

If temperature remains contant during a reaction the process is called:

Im Kjedahl's method, the nitrogen present in the organic compound is quantitatively converted into

If temperature remains constant during the process. It is called an :

If temperature is 10^(@)C, what is temperature in Fahrenheit?

Illustrate with examples the limitations of Williamson synthesis for the preparation of certain types of ethers.

If te solubility product of BaSO_(4) is 1.5 xx 10^(-9) in water, its solubility in moles per litre, is

Illustrate: Wurtz fitting reaction

Illustrate with examples - (i) Lyophilic and Lyophobic sols (ii) Homogeneous and Heterogeneous catalysis.

If T_(1)andT_(2) are the temperatures of the heat source and sink respectively, the efficiency of a heat engine may be expressed as