NTA Abhyas JEE Main2020ChemistryPractical ChemistryPractice

When phosphate radical react with ammonium molybdate, the colour of precipitate obtained is

Options

AGreen
BPink
CCanary yellow
DViolet

Correct answer

C. Canary yellow

Step-by-step solution

Phosphates give canary yellow precipitate with ammonium molybdate in the presence of conc. H N O 3 H 3 PO 4   +   12(NH 4 ) 2 MoO 4   +   21HNO 3 → (NH 4 ) 3 PO 4 .12MoO 3   +   ammonium   phosphomolybdate canary   yellow   ppt . 21NH 4 NO 3   +   12H 2 O

Practice Practical Chemistry on Quantrex Academy →

More from Practical Chemistry

Passage: Consider the following reaction sequence in which J , K , L and M are the major products. Given: Atomic mass (in amu): H : 1 , C : 12 , N : 14 , O : 16 , S : 32 , Br : 80 2026 Among Fe³⁺ , Pb²⁺ , Cu²⁺ and Mn²⁺ , identify the one that gets precipitated out while passing H₂S in presence of NH₄OH as group reagent. The highest possible oxidation state of the 2026 Among Fe²⁺, Fe³⁺, Cr²⁺ and Zn²⁺ , the ion that shows positive borax bead test and with highest ionisation enthalpy is: 2026 A salt with few drops of conc. HCl gives apple green colour in flame test. The group precipitate of the salt is dissolved in acetic acid and treated with K₂CrO₄ to give yellow prec 2026 A student has been given 0.314 g of an organic compound and asked to estimate Sulphur. During the experiment, the student has obtained 0.4813 g of barium sulphate. The percentage o 2026 In the Group analysis of cations, Ba ²⁺ ~ &~ Ca ²⁺ are precipitated respectively as 2026 Consider three metal chlorides x , y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is soluble in hot water. x , y a 2026 By usual analysis, 1.00 g of compound ( X ) gave 1.79 g of magnesium pyrophosphate. The percentage of phosphorus in compound (X) is : (nearest integer) (Given, molar mass in g mol 2026 Full Practical Chemistry list All NTA Abhyas JEE Main PYQs