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why (sih3)3P SHOWS NO backbonding

What is the final major product of the following sequence of reactions?

In an experiment it is shown that 10 mL of 0.05 M solution of chloride required 10 mL of 0.1 M solution of AgNO3, which of the following will be the formula of the chloride?(X stands for the symbol of the element other than chlorine)

What is the major product of the given E2 reaction?

Bond energies of H-H bond is 80 KJ/mol,I-I bond is 100 KJ/Mol and for H-I bond is 200KJ/mol the enthalpy of the reaction : H2+I2 gives 2HI

What will happen when we take water in equilibrium and increase pressure in it?

The mixture that forms maximum boiling azeotrope is:(1) Acetone + CS_2 (2) Hep†an e + Oc†an e (3) H_2O+HNO_{3 }(4)Ethanol +Water

What will be the resonance energy of N2O from following data: Hf(N2O)= 82kJ/mol,Bond energy of N2(triple bond),N=N,O=O and N=O bonds are 946,418,498,607 kJ/mol respectively?

Molecule obtained by sp3d2 hybridisation has Bond angle of

How many moles and how many atoms of each element are present in 0.6g of urea

What is the 5th and 6th coordination number of a compound xy where x are in octahedral voids and y are fcc lattice

One litre of O2 at NTP reacts with 3 times the volume of CO at NTP. Calculate volume of CO2 formed.

1. 2Chlorobutane> P Reaction occurs in presence of 15% aqueous solution of ethyl alcohol. In this reaction 70% racemisation takes place. % of inverted product will be: a)30 b)70 c)35 d)65

Among the following, the species that act as the weakest base is:

A metal chloride contain 47.22% metal.Calculate the equivalent weight of metal.

44. If 2 moles of A is added to 1 lg water and solution boils at 100.52^° C then calculate percentage of association or dissociation for A ( Kb for H2O = 0.52 K/molal)

what is space and unit cell?

The arrangement of the following compounds:i. Bromomethaneii. Bromoformiii. Chloromethaneiv. Dibromomethane

Naturally occurring α -amino acids, histdine is ----- in nature

Acetophenone (PhCOCH3) reacts with perbenzoic acid to produce a compound X. Reaction of X with excess CH3MgBr followed by treatment with aqueous acid predominantly produces

The major elimination product in the above reaction is:

19. Is there any difference in the cleavage of ethers reaction between excess HBr and excess HI?

if isopropyl chloride and ethyl chloride both react with Na in the presence of ether which alkanes are obtained 1.n-butane 2.2-methyl butane3.2,3 dimethyl butane4.all

Which effect does no2 group produce at para position?

What are enantiomers,diastereomers,racemic mixture

What is the pH range of gastric juices?

The amount of dissociation is ✓0.5 the value of KP for the reaction N2O3 -NO+NO2 will be1. Equal to the pressure of the system2. 2/8 of the pressure of the system3.8/3 of the pressure of the system4.5 times of the pressure of the systemNeed explanation with the solution

When acetaldol is treated with excess of acid thenunsaturated product will be :(1) Alcohol(3) Acid(2) Aldehyde(4) Alkyl halide

Q.1 How many protons does the dibasic acid donate if the base present in the reaction is triacidic?

25. Calculate the pH of a solution obtaining by mixing 200ml of. 1M CH3COOH (Ka=10-5) and 50ml of. 2M Ca(OH)2

If the boiling point elevation constant and the boiling point of benzene are 2.16 K kg mol−1 and 81.0∘ C respectively, calculate the boiling point of a solution formed when 5 g of C14H12 is dissolved in 15 g of benzene.

Total no. Of orbitals that can be filled in 7th period according to n+l rule 1.322. 163.94. 25

Based on magic numbers, which nuclide is the most stable ?

Relative stabilities of the following carbocation will be in order:

If the speed of electron in first Bohr orbit of hydrogen be ′x′, then speed of the electron in second orbit of He+ is :

for A toB first order reaction concentration of reac†an t is reduced from 1Mto0.6M in 20 minute calculate the time taken for cocentration of reac†an t is reduced from 0.6M to0.36M

A solution is obtained by dissolving 0.2 moles of urea in a litre of water. Another solution is obtained by dissolving 0.4 moles of cane sugar. The lowering of vapour pressure of the first solution is

Is it possible to check whether water is hard with the help of soap? If yes, how?

10 mL of 1 mM surfactant solution forms a monolayer covering 0.24 cm2 on a polar substrate. If the polar head is approximated as a cube, what is its edge length?(Take NA=6×1023)

The number of species below that has two lone pairs of electrons in their central atom is______(Round off to the Nearest Integer.)SF4,BF–4,CIF3,AsF3,PCl5,BrF5,XeF4,SF6

The reagent(s) with which the following reaction is accomplished is/are :

Identify the correct formula for potassium tetracyanonickelate(II).

The total number of distinct naturally occurring amino acids obtained by complete acidic hydrolysis of the peptide shown below is___

ntEdge length of fcc unit cell is 508pm. If the radius of cation is 110pm then radius of anion isn

there are no radial nodes in 2p orbital then why does the graph of sie square vs r passes through origin ?

Is is Avogadro hypothesis experimentally correct?

For the reactions (i) H2(g) + Cl2(g)⟶2HCl(g) + xKJ (ii) H2(g) + Cl2(g)⟶2HCl(l) + yKJ Which of the following statements is correct?

Analyze the reaction given below:ACalcination−−−−−−−→CaO(s)+MgO(s)+2CO2(g)Find out A.

The correct set of four quantum number for the valence electrons for rubidium atom (z = 37) is