Recently Active Chemistry Questions

*Image* THE answer is *Image* someone please explain ...

*Image* Arrange in order of basic strength ...

*Image* WHAT IS THE ORDER OF BASICITY.... GIVE REASON PLZ... ...

BaSO4 and H2-Pd are used in both Lindlar's catalyst and Rosenmund reduction. But if both acid chloride and alkyne group are present in the same compound which reaction will be favoured? ...

could somebody explain the effect of addition of inert gas to a system in equilibrium under different conditions???? ...

the degeneracy of hydrogen atom that has the energy equalto - R/9 is ( where R is rydberg's contant ) a)4 b)6 c)9 d)12 ...

S-I there are no 2d and 3f orbitals S-II the l values of 2d and 3f are 2 and 3 ...

The ratio of 31H to 11H in a sample of water is 8x10-18 :1 31H undergoes decay with a half life 12.3 years the number of tritium atoms would 9 g of the sample contain 40 years after the original sample is collected is a)5.06x ...

S-I spark plugs are not necessary in diesel engines S-II the temperature increases during compression of gases ...

An evacuated gass vessel weighs 50.0 g when empty, 148.0 g when filled with a liquid of density 0.98 gmL-1 and 50.5 g when filled with an ideal gas at 760 mm Hg at 300 K. Determine the molecular weight of the gas. ...

A:The rate of loss of optical activity during isotopic inversion SN2 is twice the rate of isotope exchange. B:SN2 reaction proceeds through inversion (i)Both true,B is the correct explanation of A (ii)Both true B is not the c ...

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Q Among PCl3,CH3+,NH2-and NF3 ........................ is the least reactive towards water. GIVE REASON 4 UR ANSWER ...

For the reaction N2O5 \Leftrightarrow 2NO2 + 0.5O2, calculate the mole fraction of N2O5 decomposed at a constant volume and temperature, if the initial pressure is 600 mm Hg and the pressure at any time is 960 mm Hg. Assume i ...

which of d following statements on critical constants of gases are correct. a) larger the t.c./pc value of the gas larger would be the excluded volume b) critical temperature of the gas is greater thatn its boyle temperature. ...

The compression factor (compressibilty factor) for aone mole of a van der waals gas at 0°C and 100 atm pressure is 0.5. Assuming that the volume of a gas molecule is negligible, calculate the Van der Waals constant a ...

One mole of nitrogen gas at 0.8 atm takes 38 seconds to diffuse through a pinhole, whereas one mole of an unknown compound of xenon with flourine at 1.6 atm takes 57 sec to diffuse through the same hole. Calculate the molecul ...

THe graph is plotted between PVm along Y axis and P along X axis, Vm is the molar volume of a real gas. Find the intercept on the Y axis. ...

Organic Chemistry Practice Multiple Choice Questions These questions are designed to give you practice with multiple choice questions. If you select the wrong answer, there are suggestions to help you see why that answer is n ...

The average velocity o fgas molecules is 400 m/s. Calculate its rms velocity at the sam etemperature.. ...

what is the significance of (1)Z>1 (2)Z<1???? ...

arrange in the order of increasing radii Li+ , Mg2+ , K+, Al3+ ...

In an autoengine with no pollution controls,about 5% of the fuel (C8H10) is unburned.Molar ratio of CO and C8H10 emitted in the exhaust gas is : (a)100 (b)152 (c)50 (d)5 ...

Under critical states of a gas for one mole of a gas ,comprssibilty factor is : (a)3/8 (b)8/3 (c)1 (d)1/4 ...

The compressibility factor of gas is less than unity at S.T.P,therefore: (a)Vm(molar volume)>22.4L (b)Vm<22.4L (c)Vm=22.4L (d)Vm=44.8L Give the correct answer with explaination. ...

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Compare the values of van der waals constants for NH3 and N2.Explain why value a is larger for NH3 but that of b is larger for N2. ...

Q.Calculate the K.E of Avogadro number of gas molecules at 0°C ...

Is V is the observed molar volume and Vid is the ideal molar volume,express compressibility factor Z in terms of V and Vid . how to solve ???? explain step by step ...

Q.Express ideal gas equation into(P=2/3E),where E is the kinetic energy per unit volume. ...