State reason: Stain of `I_2` can be removed by hypo solution. Which halide of nitrogen does not hydrolysed?

Which nitrogen halide does not undergo hydrolysis ?

Explain: (1) A mixture of ether and water can be separated by simple distillation. (2) Water present in rectified spirit can be removed by azeotropic distillation. (3) Benzoic acid can be extarced from its aqueous solution using benzene. (4) Sugar containing NaCI as impurity can be purified by crystallisation using ethanol but not water. '

For real gases van der Waals equation of state can be expressed as (p+(a)/(V^(2)))(V-b)=RT where p is the pressure V is the molar volume and T is the absolute temperature of the given sample of gas and a,b, and R are constants. Which of the following does not have the same dimension as that of RT?

alpha,beta,gammaand delta are angles in I,II,II and IV quadrants, respectively and none of them is an integral multiple of pi//2 . They form an increasing arithmetic progression. Which of the following does not hold?

This question has statement I and Statement II. Of the four choices given after the statements, choose the one that best describes the two Statements. (1) Statement-I is true, Statement-II is true, Statement-II is a correct explanation of Statement-I (2) Statement-I is true, Statement-II is true,Statement-II is not a correct explanation of Statement-I (3)Statement-I is a true , Statement-II is false (4) Statement-I is false, Statement-II is true Statement-I: The HF_2^- ion exists in the solid state and also in the liquid state but not in aqueous solution. Statement-II: The magnitude of hydrogen bonds in between HF-HF molecules is weaker than that in between HF and H_2O molecules.

This question has Statement I and Statement II. Of the four choices given after the Statements, choose the one that best describes the two Statements. 10. Statement -I : The redox titrations in which liberated I_2 is used as oxidant are called as iodometric titration. Statement - II : Addition of KI of CuSO_4 liberates I_2 which is estimated against hypo solution.

The compounds in which the elements of group- 14 show an oxidation state of +4 are expected to be covalent, whereas the compound in which they show an oxidation state of +2 are expected to be ionic-explain with reason.