Recently Active Chemistry Questions

*Image* on dehydration with conc. {H_2}S{O_4} , forms predominantly ...

Among the following, electron deficient compound is ...

How will the compounds solubility in water compare with the solubility of Calcium Bromide of our Universe ? ...

Dehydration of the following in increasing order is *Image* ...

The molecular formula of diphenyl methane, *Image* is C_{13}H_{12} . How many structural isomers are possible when one of the hydrogen is replaced by a chlorine atom ...

When a grignard reagent is added to CH2=CH-CH0... does the double bond get affected? what are the final products? ...

ibuprofen((CH3)2CHCH2(C6H4)CH(CH3)COOH) is an analgesic drug which is chiral and exists as 2 enantiomers.1 of the enantiomers is physiologically active with desired analgesic effect while the other is inactive.then y is ibupr ...

Of the following molecule the only one which is not an exception to the octet rule is – ...

Basicity of (Pyridine) > (Pyrrol) but Nucleophilicity of (Pyridine) < (Pyrrol) What is the basic differences between Basicity & Nucleophilicity??? ...

The maximum possible number of hydrogen bonds, a water molecule can form is ...

1)When burnt in air,a 12.0 g mixture of carbon and sulphur yields a mixture of CO2 and SO2,in which the number of moles of SO2 is half that of CO2.The mass of the carbon the mixture contains is (a)4.08g (b)5.14g (c)8.74g (d)1 ...

C6H5-CH=CH-CH2Cl + anhydrous AlCl3 = ? identify d final products. plz show d mechanism.... ...

What is the mechanism/steps for reaction of glycerol with PCl5? ...

do acids respond to iodoform test? if yes/no then why? ...

What does the hydrolysis of isocyanides give? ...

although not exactly chemistry.... If the number of isomers produced on dibromination of n-Tridecane is 2n then find n? ...

Addition of bromine to propene in the presence of brine yields a mixture of ? ...

what does Fe/HCl reduction of CCl4 give? what are the steps? ...

Which of the following statements is true? ...

Which of the following physical properties differ for each of a pair of enantiomers? a. solubility in ethanol b. direction of rotation of plane-polarized light c. boiling point and melting point d. index of refraction ...

The product obtained in the reaction C{{H}_{3}}CH=C{{H}_{2}}underset{ ext{benzoyl peroxide}}{mathop{xrightarrow{,,,,,,HCl,,,,,}}}, is ...

What is the basic difference between bonding orbitals & anti-bonding orbitals ??? ...

The radius of an Xe atom is 1.3X10-8cm. A 100cm3 container is filled with Xe at a pressure of 1.0atm ans a temp of 273K. calculate the fraction of volume that is occupied by Xe atom?? ...

The critical temperature and pressure of CO2 gas are 304.2K and 72.9atm respectively. What is the radius of CO2 molecule assuming it to behave as vander walls' gas? ...

Vander waal's constant "b: for a gas os 4.2X10-2 lit mol-1 . How close the nuclei of the two molecules come together?? ...

4. A glass vessel weighs 40.1305g when clean dry and evacuated, 138.2410g when filled withwater at 25°C(d=0.9979 g/ml) & 40.2487g when filled with a gas at 740.4 torr and 24.1°C. What is the molecular weight of gas? ...

3. A vessel contains a mixture of 7g of N_2 & 11g of CO_2 at temp 290K. if pressure of the mixture is 1atm, calculate its density. ...

1. One litre water in a bucket is placed in a closed dry air room having dimensions 4*2*1.5 m^3 at 300K. If the vapour pressure of water at 300K is 27.0mm and density of water at 300K is 0.990 g cm^(-3), calculate the amount ...

The rate of diffusion of a sample of ozonised oxygen is 0.98 times more than that of pure O2. Find the percentage (by volume) of ozone in the ozonized sample. also tell percentage by weight. ...

Which of the following has pyramidal shape – ...