99 Percentile Qs Bank for JEE MainChemistryPractical Chemistry

Microcosmic salt bead test of salt X yields semi-translucent mass. Therefore it contains

Options

AC o N O 3 2
BC a N O 3 2
CC u S O 4
DM n S O 4

Correct answer

B. C a N O 3 2

Step-by-step solution

Silica is not dissolved by the phosphate bead. When a silicate salt is strongly heated in the bead, silica is liberated and this remain suspended in the bead in the form of semi-translucent mass. C a S i O 3 + N a P O 3 → N a C a P O 4 + S i O 2

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 99 Percentile Qs Bank for JEE Main PYQs