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Arrange the following compounds in order of increasing dipole moment. (I) Toluene (II) m - dichlorobenzene (III) o - dichlorobenzene (IV) p - dichlorobenzene

Which one of the following forms an alcohol with nitrous acid solution at 00C

How many e− are present in the kernel of Cl?

who introduced laws of thermodynamics?

Largest number of ions is present in the electrolyte

27 Which of the following electrolytes will have maximum coagulation value for Ag/Ag+ sol? A Na2S B Na3PO4 C Na2SO4 D NACL

Two gases A and B having molecular weights 60 and 40 respectively are enclosed in a vessel. The weight of A is 0.45 g and that of B is 0.1 g. The total pressure of the mixture is 900 mm of Hg. Calculate the partial pressure of the gas A.

PhCHO+(CH3CO)2OCH3COONa−−−−−−−−→ A HBr−−−→ BThe product B is :

For the reaction PCl5(g)⇋PCl3(g)+Cl2(g); the forward reaction at constant temperature is favoured by:

what is swarts reactio

Which of the following compounds are diprotic 1.H_2PO_5 2.H_2S 3.HClO_3 4.H_3PO_4

why and how an amorphous solid gets converted into crystalline solid with a high temperature?

24. Which of the following is the d-block element 1.Sc. 2.Ga 3.Se. 4.Cl

Explain the construction of a calorimeter.

The weighing machine measures weight of the body or mass of the body.

Which of the following compounds are formed by the oxidation of 3 – methyl butane 1, 2, 3 – triol with HIO4

A monoatomic gas undergoes a process where gas does work on expense of internal energy. The relation between pressure and volume is given by

The number of neutrons present in 1.7 g of ammonia is

24.The number of peroxide linkages in perchloric acid is (1) Zero (2) One (3) Two (4) Four

The hydride that is not electron deficent is:

What is the order of reactivity of following compounds with (a) PhMgBr (b) HCN? 1. Benzophenone 2. Ethanal 3. Acetone

When solid potassium cyanide is added in water then

69. Why σ bonds are more stronger than pie bonds?

15. What is hydrogen spectrum

10. Why and how does hydration enthalpy depends on ionic sizes

The number of aromatic isomers of molecular formula C8H9Cl which don't have chlorine atom in the aromatic nucleus is a) 5 b) 4 c) 6 d) 7

Ag2S+NaCN→(A),(A)+Zn→(B)+Ag, (A) and (B) are respectively

Predict the correct intermediate and product in the following reaction

Which of the following ions has the highest magnetic moment?

Calculate the wavelength in Angstroms of the photon that is emitted when an electron in the Bohr orbit, n = 2 returns to the orbit, n = 1 in the hydrogen atom. The ionization potential of the ground state hydrogen atom is 2.17×10−11 erg per atom.

The acidic, basic and amphoteric oxides respectively are :

list of monovalent elements

75, In a first order reaction A → 2B, the total pressurechanges from 100 to 150 mm Hg in 10 minute fromthe start of the reaction. The rate of appearance ofB is(1) 5 mm Hg min(2) 50 mm Hg min(3) 100 mm Hg min-110 mm Hg min-1

3.Explain molten state and diff. between molten and native

What will be the major product formed if hydrogen iodide is added to Pent-2-ene

Moles of KCio, required for producing sufficient O2to react with 1 mole of aluminium will be (Molarmass of KCIO 122.5)(1) 2 mole(2) 1 mole5(4) mole2(3) mole2

26.In a reversible reaction A(g)+B(g)--->C(g). Initially 1 mol of each reactant is taken in 2L container if at equilibrium 20% of A reacts with B. Then what will be equilibrium constant Kc for the reaction

Is hybridisation only for Valence bond theory or is it also for Molecular Orbiral theory?

Question 4Under what soil conditions do you think a farmer would treat the soil of his fields with quick lime (calcium oxide) or slaked lime (calcium hydroxide) or chalk (calcium carbonate)?

Which of the following is the most covalent halide?

Product [X] in the following reaction is:

Which reacts rapidly with Lucas reagent ?

An acid-base indicator has a K_a of 3×10^{-5}. The acid form of the indicator is red and the basic form is blue. The change in H^{+ }concentration (which is 9×10^{-5}) in order to change the indicator from 25% red to 75% blue is- 1)2×10^{-5}, 2)8×10^{-5}, 3)9×10^{-5, }4)1×10^{-5}

A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three pieces. Two pieces each of mass (m) move perpendicular to each other with equal speeds (v). The total kinetic energy generated due to explosion is

Fo an ideal gas, consider only P-V work in going from initial state X to the final state Z. The final state Z can be reached by either of the two paths shown in the figure. [Take △ S as change in entropy and W as work done]. Which of the following choice(s) is (are) correct? (2012)

At a partial pressure of 600 mm Hg and 298 K, the solubility of a gas in water which is exposed to the atmosphere is 1×10−4M. Calculate the solubility of the gas at 700 mm Hg and at same temperature?

In which of thefollowing arrangements the given sequence is not strictly according to theproperty indicated against it?

A sample of amoniumphosphate contains 3.18 moles of hydrogen atom.The no. Of moles of oxygen atom in the sample is-