Explore topic-wise InterviewSolutions in Current Affairs.

Statement-1 : H_2 gas is use in metallurigical process. Statement-2 : H_2 gas is use as fuel.

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Statement-1. Free radicals are always planar. Statement-2. They can achieve sp^(2) as well as sp^(3)-hybridisation.

statement-1 :For PCI_(5)(g)hArrPCI_(3)(g)+CI_(2)(g). If more CI_(2) is added the equilibrium will shift in backward direction,hence, equilibrium constant will decrease. statement-2 : Addition of inert gas to the equilibrium mixture at constant volume,does not alter the equilibrium.

Statement -1. For every chemicalreaction at equilibrium ,standard Gibbs energy of reactions is zero. Statement-2. At constant temperature and pressure, chemical reactions are spontaneous in the direction of decreasing Gibbs energy

statement-1 :For every chemical reaction at equilibrium standard Gibbs energy of reaction is zero. statement-2 : At constant temperature and pressure, chemical reactions are spontaneous in the direction of decreasing Gibbs energy.

Statement-1. Fe^(3+) ion is more stable than Fe^(2+) ion Statement-2 Fe^(3+) ion has more number of unpaired electrons than Fe^(2+) ion

Statement-1: Equivalent mass of H_(3)PO_(2) is equal to its molecular mass. Statement-2: H_(3)PO_(2) is a monobasic acid.

Statement -1. Entropyof all elements is zero at 0K. Statement -2. Standard entropy of allelements is greater than zero.

Statement-1. Enthalpy change at constantpressure is always greater thanenthalpy change at constant volume for any reaction. Statement -2. Work is done by the system at constant pressure for agiven change in volume but no work is done by the system at constant volume.

Statement-1. Entropy is not a state function because its value depends upon the conditions of temperature and pressure. Statement -2. A state function dependsonly on the initial and the final states of the system and is independent of the path.

Statement-1. Electrolysis of NaH in the fused state liberates H_(2) at the anode. Statement -2. NaH contains H^(-) ions.

STATEMENT-1: Disteremers are morror image of each other. STATEMENT-2: Disteromers may be optically active.

Statement-1. Dimethyl sulphide is commonly used for the reduction of an ozonide of an alkene to Be carbonyl compounds. Statement-2. It reduces the ozonide giving water soluble dimethyl sulphoxide and excess of it evaporales

Statement -1 : Density of ice is less than water. Statement-2 : Ice has open cage structure.

Statement-1. Demineralized water does not contain any ions. Statement-2. Permutit process for water softening gives demineralized water.

STATEMENT-1: Cyclohexen shows gemetrical siomerism. STATEMENT-2: Its two sp^(2) H-atoms are cis to each other.

Statement- 1 . CuCl is more covalent than NaCl. Statement- 2 . Na^(+) ion is more polarising than Cu^(+) ion .

Statement 1 Copper liberates hydrogen from a dilute solution of hydrochloric acid Statement 2 E^(@) of Cu is higher than of H_(2)

Statement-1 : Covalent crystals have the highest melting point Statement-2 : Covalent bonds are stronger than ionic bonds.

Statement-1: correct IUPAC name of this compound is 1-chloro-6-fluoro-3,4-epoxyhexane. Statement-2: CI and F both are groups without suffix, CI comes before F in alphabetical order so numbering is done from this end.

Statement -1. copper liberates hydrogen from a dilute solution of hydrochloric acid Statement-2 E^(@) of Cu is higher than that of H_(2)

Statement-1. Compressibility factor of non-ideal gases is always less than1. Statement-2. Non-ideal gases exert less pressure than expected for ideal gas.

Statement-1. CO_(2) is a gas but SiO_(2) is a solidat room temperature. Statement-2. CO_(2) contains C = O bonds but C=O bonds butSiO_(2) has a three-directional network structure.

Statement-1. CO and NO both combine with haemoglobin. Statement-2. Both have equal affinity for haemoglobin.

Statement-1 : CH_4 is a covalent hydrides. Statement-2 : CH_4 is dectron precise type hydrides.

Statement-1 . CH_(3)CHO and CH_(2)=CHOH are resonance structures. Statement-2. Tautomers differ both in the position of atoms as well as electrons.

Statement-1: Calcium carbide on hydrolysis gives methane. Statement-2: Calcium carbide contains C_(2)^(2-) anion.

Statement-1. Bromobenzene upon reaction with Br_2 /Fe gives 1. 4-dibromobenzene as the major product Statement-2. In bromobenzene, the inductive effect of the bromo group is more dominant than the mesomeric effect in directing the incoming electrophile.

Statement-1. Boron alwaysforms covalent bonds. Statement-1. The small size of B^(3+) favours formation of covalent bond.

STATEMENT -1:Boiling point of ketones is higher thencorresponding Aldehyde.STATEMENT -2 :Dipolemoment of Aldehyde is higher then Ketone.

Statement-1. BF_(3) molecule is planar whileNF_(3) is pyramidal. Statement-2. N atom is smaller than B .

Statement-1: Boiling point of methane is lower than that of butane. Statement - II: The boiling point of continuous chain alkanes increases with increase in length of carbon chain.

Statement-1. BF_(3) is a weaker Lewis acid than BCl_(3). Statement-2. The ppi-ppi back bonding is stronger in BF_(3) than in BCl_(3).

Statement- 1 . Be(OH)_(2) is soluble both in HCl and NaOH . Statement- 2 . Be(OH)_(2) is amphoteric in nature .

Statement-1. Beilstein test can be used to detect fluorine in the organic compound. Statement-2. CuF is not volatile and hence does not impart any colour to the flame.

Statement- 1. Be and Mg give characteristic flame colourations . Statement- 2 . As compared to other alkaline earth metals , ionization enthalpy of Be and Mg is high .

Statement- 1 . Be forms [BeF_(4)]^(2-) but Al forms [AlF_(6)]^(3-). Statement- 2 . Be does not have d-orbitals in the valence shell but Al has .

Statement-1. At zero degree Kelvin, the volume occupied by a gas is negligible. Statement-2. All molecullar motion ceases at 0 K.

Statement- 1. Among the alkali metals , caesium salts exhibit the maximum electrical conductance in aqueous solutions . Statement- 2 . The radius of hydrated caesium ion is the highest among alkali metals .

STATEMENT -1: Amixture of on treatment with dil . NaOH gives STATEMENT -2 :The ketone is very hindered and conjugated and so less reaction than aldehyde.

Statement-1. Aluminium acts as a strong affinity for oxygen. Statement-2. Aluminium has a strong affinity for oxygen.

Statement-1. Although NaH_(2)PO_(2) contains two H-atoms, it is not an acid salt. Statement-2. It contains two ionisable hydrogens.

STATEMENT -1:Alphatic Ketone are Less reactive then aliphatic aldelydeSTATEMENT -2 :Rate of Electrophillic addition and substitution in aliphatic aldehyde is faster then aliphatic ketones

Statement 1 all decompostion reaction are redox reactions Statement 2 H_(2)O on decompostion gives H_(2) and O_(2)

Statement- 1 . Alkali metals dissolved in liquid ammonia to give blue solutions . Statement- 2 . Alkali metals in liquid ammonia give solvated species of the type [M(NH_(3))_(n)]^(+) (M = alkali metals)

Statement-1: Addition of HCl (aq). " to " CH_(3)COOH (aq). decrease the ionisation of CH_(3)COOH (aq). Statement-2 : Due to common ion effect H^(+), ionisation of CH_(3)COOH decreases.