Recent questions in Chemistry

The element with the highest 1st ionization potential is :

asked Mar 6, 2014 by meena.p

1 answer

Nylon -66 is a polyamide of a

asked Mar 6, 2014 by thanvigandhi_1

1 answer

Which of these is the most basic oxide.

asked Mar 6, 2014 by meena.p

1 answer

The hybridisation of I in $IF_7$ molecule is

asked Mar 6, 2014 by sreemathi.v

1 answer

The lone pair of electron is located in $XeF_6$ geometry is

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following is Paramagnetic ?

asked Mar 6, 2014 by meena.p

1 answer

Electronegativity of an element is $1.0$ on the pauling scale its value on mulliken scale is

asked Mar 6, 2014 by meena.p

1 answer

Which of the following is the correct order of bond length?

asked Mar 6, 2014 by sreemathi.v

1 answer

Which one of the following is the strongest base?

asked Mar 6, 2014 by meena.p

1 answer

The inter particle forces between linear chains in Nylon-66 are

asked Mar 6, 2014 by thanvigandhi_1

1 answer

Which one of the following is the smallest in size ?

asked Mar 6, 2014 by meena.p

1 answer

Which of the following has highest bond length

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following statement is incorrect?

asked Mar 6, 2014 by sreemathi.v

1 answer

The Outermost electronic configuration of the most electronegative element is

asked Mar 6, 2014 by meena.p

1 answer

Which of the following statement is correct?

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following order is wrong ?

asked Mar 6, 2014 by meena.p

1 answer

The bond angle of $O-Xe-F$ in $XeOF_4$ is

asked Mar 6, 2014 by sreemathi.v

1 answer

Correct order of $(IE)$ among the following $Be,B,C,N,O$

asked Mar 6, 2014 by meena.p

1 answer

Atomic radii of flurine and neon in Angstrom units are respectively given by

asked Mar 6, 2014 by meena.p

1 answer

The number of lone pairs are located in equatorial position of $ClF_3$

asked Mar 6, 2014 by sreemathi.v

1 answer

The electronic affinity values (in KJ molt) of 3 halogens X,Y,Z are respectively $-349,-333,-325$. Then X and Y are Z respectively

asked Mar 6, 2014 by meena.p

1 answer

Which one of the following molecule shows the highest angle

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following is the correct order of bond angle

asked Mar 6, 2014 by sreemathi.v

1 answer

Which one of the following arrangements represents the correct order of electron gain enthalpy

asked Mar 6, 2014 by meena.p

1 answer

Identify the correct order in which the covalent radius of the following elements increases ? $(I)\;Ti; \; (II)\;Ca ; \; (III)\;Sc$

asked Mar 6, 2014 by meena.p

1 answer

In the change of $NO^+$ to NO,the electron is added to

asked Mar 6, 2014 by sreemathi.v

1 answer

Identify the correct order in which the ionic radius of the following ions increases. $(I) \;F^{-};\;(II)\;Na^{+};\;(III) \;Na^{3-}$

asked Mar 6, 2014 by meena.p

1 answer

Hydrogen bonding is maximum in

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following aromatic substitution has zero dipolemoment?

asked Mar 6, 2014 by sreemathi.v

1 answer

The ions $O^{2-},F^{-},Na^{+},Mg^{2+}$ and $Al^{3+}$ are iso electronic, Their ionic radii show.

asked Mar 6, 2014 by meena.p

1 answer

In which set of diatomic molecules is the bond order three

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following arrangements show the correct order of increasing lattice energy ?

asked Mar 6, 2014 by meena.p

1 answer

Which of the following molecule has the non-zero dipole moment

asked Mar 6, 2014 by sreemathi.v

1 answer

The first , second, third and fourth ionization energies of a given element are $80,2.43,3.66$ and $25.03 \;MJmol$ respectively

asked Mar 6, 2014 by meena.p

1 answer

Among the following molecules,the dipolemoment is the lowest for

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following arrangement shows the correct order of increasing stability ?

asked Mar 6, 2014 by meena.p

1 answer

The ratio between the root mean square speed of $H_2$ at 50K and that of $O_2$ at 800K is..

asked Mar 6, 2014 by sharmaaparna1

1 answer

The hybridisation in both$CH_4$ and $NH_3$ is $sp^3$ .Yet $CH_4$ is tetrahedral and $NH_3$ is of pyramidal shape because

asked Mar 6, 2014 by sreemathi.v

1 answer

The correct sequence of the ionic radii of the following is

asked Mar 6, 2014 by meena.p

1 answer

The number of $\sigma$ and $\pi$-bonds between two carbon atoms in $CaC_2$ is

asked Mar 6, 2014 by sreemathi.v

1 answer

The ratio of average speed of an oxygen molecule to the RMS speed of a nitrogen molecule at the same temperature is :

asked Mar 6, 2014 by sharmaaparna1

1 answer

The incorrect combination among the following is

asked Mar 6, 2014 by sreemathi.v

1 answer

Which of the following statement is not correct ?

asked Mar 6, 2014 by meena.p

1 answer

Which of the following species has two non-bonded electron pairs on the central atom?

asked Mar 6, 2014 by sreemathi.v

1 answer

The average kinetic energy of an ideal gas per molecule in SI units at $25^{\large\circ}C$ will be

asked Mar 6, 2014 by sharmaaparna1

1 answer

The correct one among the following statements about $N_2$ is

asked Mar 6, 2014 by sreemathi.v

1 answer

The ratio of rates of diffusion of propane and nitrogen (I) oxide at same P and T is

asked Mar 6, 2014 by sharmaaparna1

1 answer

A cylinder was filled with gaseous mixture containing $CO$ and $N_2$ . The ratio of their partial pressure in cylinder are:

asked Mar 6, 2014 by sharmaaparna1

1 answer

The highest occupied molecular orbital in HF is

asked Mar 6, 2014 by sreemathi.v

1 answer

Oxygen and cyclopentane at partial pressure of 570 torr and 170 torr respectively are mixed in a gas cylinder . The ratio of the number of moles of cyclopentane to the number of moles of oxygen is:

asked Mar 6, 2014 by sharmaaparna1

1 answer

Ask Questions, Get Answers