For the elementary reaction M → N, the rate of disappearance of M increases by factor of 8 upon doubling the concentration of M. The order of the reaction with respect to M is

Calgon used as a water softener is

In which of the following case, increase in concentration of ion cause increase in E_cell?

Directions: Questions  are based on the following paragraph.

When ammonium vanadate is heated with oxalic add solution, a compound Z is formed. A sample of Z was titrated with KMnO₄ solution in hot acidic solution. The resulting liquid was reduced with SO₂, the excess SO₂ boiled off, and the liquid again titrated with KMnO₄. The ratio of the volumes of KMnO₄ used in the two titrations was 5 : 1. KMnO₄ oxidises all oxidation state of vanadium to Vanadium (+V) and SO₂ reduces vanadium (+V) to vanadium (+IV). Read the above experiment and answer the following questions.

Q. What is the oxidation state of vanadium in the compound Z?

Direction: Question is assertion reason type. These question contains two statements Statement I (Assertion), Statement II (Reason). These question also has four alternative choices, only one of which is correct. You have to select the correct choices from the codes (a), (b), (c) and (d) given below:

Statement I : Detection of chlorine in 2, 4, 6 -trinitrochlorobenzene can be done directly by addition of aq. AgNO₃ solution.

Statement II: C-Cl bond is weakened by electron withdrawing - NO₂ group

Silver (atomic weight = 108 g mol^-1 ) has a density of 10.5 g cm^-3. The number of silver atoms on a surface of area 10^-12 m² can be expressed in scientific notation as y * 10^x . The value of x is

Names of some compounds are given. Which one is not correct in IUPAC system?

The structure of isobutyl group in an organic compound is :

consider the follwing reaction,

the value of x, y and z in the reaction respectively are

The correct statement about the following disaccharide is