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M2SO4 (M+ is a monovalent metal ion ) has Ksp of 1.2 ×10^-5 at 298 K . The maximum conc. Of M+ ion that could be attained in a saturated solution of this solid at 298K is

The ionization constant of based(c2h5)3N is 6.4 into 10 power minus 5 calculate its dissociation degree in its. 1 molar solution when it is mixed with. 01 molar and NaOH solution

Aniline in a set of the following reactions yielded a coloured product Y.The structure of 'Y' would be :

The number of all the possible stereoisomers formed by the given compound is :

Calculate standard heat of combustion of ethanol(C2H5OH(I)). Given that A,H (C2H5OH, I)- 278 kJ/mol, AH^° (CO2, g)(H20, I) =- 286 kJ/mol.- 394 kJ and AH

Consider following compounds and write total number of compounds which are less reactive than formaldehyde toward nucleophilic addition reaction.CH3−O||C−H(i) ; CH3−O||C−CH3(ii) ; Et−O||C−H(iii)CH3−CH2−CH2−O||C−H(iv) ; Ph−O||C−CH3(v) ; Ph−O||C−Ph(vi)

A phenomenon in which an element exists in different modifications in the same physical state is called-

The molar solubility in (mol L−1) of a sparingly soluble salt MX4​ is ′s′.The molar solubility product is Ksp. ′s′ is given in terms of Ksp by the relation:

Compound A is

Which is not amphoteric

Which of the following reactions will yield 2,2-dibromopropane as the major product?

When Q amount of heat is given to a gas constant pressure it performs Q /3amount of work. the average number of degrees of freedom per molecule of the gas is(1) 1(2) 4(3) 5(4) 6From catalyst

In sucrose, two mono saccharide units are held together by a glycosidic linkage between

Which of the following cannot be a catalyst in the electrophilic substitution of arenes?

65. A solid is made up of A and B.the atoms of A are arranged in a CCP structure and those of B occupy all the tetrahedral sites.the formula of compound is

The compound (C) and the reaction involving the conversion of (B) to (C) are:

Find no. Of significant figure when 76.246 is divided by 2

Draw metamers of ethylpropanoate!

How -M effect of COOH is more than CONH2

How are the terms "Precision" and "Accuracy" applied in daily life chemistry?

According to molecular orbital theory, which among the following is diamagnetic species?

Why do some compounds like c2 form pi bonds instead of sigma bonds?

why is the maximum and minimum covalency an atom can have

What is the coordination number of the red atom in the following case. Type it in. ___

If a photon of wavelength 100 pm strikes an atom and one of its inner bound electrons is ejected out with a velocity of 1.5×107 ms−1, calculate the energy with which it is bound to nucleus.

Identify the compound X in the following reaction: X+CO2+H2O → NaHCO3

What will be the heat of formation of methane, if the heat of combustion of carbon is '-x' KJ, heat of formation of water is '-y' KJ and heat of combustion of methane '-Z' KJ?

Of the four hexanes, the isomer which can give two monochlorinated compound Is:

65 Which of the following compounds can be hydrolysed A. SF6 B. CCl4 C. SF4 4. NaCl

Henry's law constant for the solubility of N2 gas in water at 298K is 1.0×105 atm. The mole fraction of N2 in air is 0.6. The number of moles of N2 from air dissolved in 10 moles of water at 298K and 5 atm pressure is

In a crystal AB, B forms fcc packing and A occupies all the octahedral voids. If all the particles along one body diagonal are removed then the formula of the crystal would be 1.A5B4. 2. A3B2. 3. A4B3. 4. A4B5

Cl2(g)⇌2Cl(g)For the given reaction at equilibrium, moles of Cl2(g) is equal to the moles of Cl(g) and the equilibrium pressure is 1 atm. If Kp of this reaction is x ×10−1, find x.

Question 2Define 1 watt of power.

1g of a protein polymer having molar mass 16 ×10^4 is present in 800 ml solution at 300K then osmotic pressure (in Pascal) is [R =8.314 J/mol K]:-1) 0.42) 0.023) 0.044) 0.2

Thevelocity of an electron placed in 3rd orbit of H atom, will be

In the nth orbit, the energy of an electron is En=13.6n2 eV for a hydrogen atom. The energy required to take the electron from first orbit to second orbit will be,

a metal in its depositive state has the electronic configuration 2,8,14 and has the atomic weight equal to 56 . No. of neutrons in its nucleus would be

Whether noble gas have charge or not and oxidation number is zero? Why? and give reasons?

Determinethe solubilities of silver chromate, barium chromate, ferrichydroxide, lead chloride and mercurous iodide at 298K from theirsolubility product constants given in Table 7.9. Determine also themolarities of individual ions.

33. Why soul phonation of benzene is a reversible reaction

the hybridisation state of the central atom in ALI3 is-

6. pH of the solution containing 0.01M NH_4Cl and 0.1 M NH_4OH solution (pKb=5) is

How the volume of a gas is related to the number of moles? What is the volume of one mole of a gas at STP?

Which of the following statements are correct for a solution of H2O2 having a strength of 17g/litre ?

Write order of migrating power of phenyl derivatives. Do ortho para, and Mata position affect migrating power?

Explain the events in gold leaf electoscope. What is conduction and induction

Prove that PV=nRT for one mole of gas

THThe enthalpy of hydrogenation of cyclohexaneis-119.5 kJmol-1. Ifresonance energy of benzeneis-150.4 kJ mol, its enthalpy of hydrogenationwould be\lbrack2006)(b) 269.9 kg mol-1-508.9 kg mol-1(a) -208.1 kg mol-(c) -358.5 kgmol(d)reactionA.

why does d and f electrons do poor shielding of the outer electrons from the nucleus?why can't they do good screening

When two silicon atoms are isomorphously substituted by two Al3+in a(SiO2)4 network, the number of the charges on the aluminosilicate anion is.___

The molar solubility in (mol L−1) of a sparingly soluble salt MX4 is ′s′.The molar solubility product is Ksp. ′s′ is given in terms of Ksp by the relation: