Dry Tests for Cations

JEE Main Chemistry · Qualitative Salt Analysis · 7 questions, latest first

• Consider the following reactions Na_2 B_4 O_7 →Δ 2 X+Y; CuSO_4+Y → Non-Luminous flame Z+SO_3; 2 Z+2 X+ Carbon → Luminous flame 2…202628 January, Shift 2 · Q61
• The metal ion whose electronic configuration is not affected by the nature of the ligand and which gives a violet colour in…202528 January, Shift 1 · Q62
• Match List I with List II Choose the correct answer from the options given below:20248 April, Shift 1 · Q72
• In a borax bead test under hot condition, a metal salt (one from the given) is heated at point B of the flame, resulted in green…20245 April, Shift 1 · Q87
• Number of metal ions characterized by flame test among the following is ____. Sr^2+, Ba^2+, Ca^2+, Cu^2+, Zn^2+, Co^2+, Fe^2+202430 January, Shift 2 · Q90
• Given below are two statements: Statement I: Upon heating a borax bead dipped in cupric sulphate in a luminous flame, the colour…202331 January, Shift 2 · Q47
• During the borax bead test with CuSO_4, a blue green colour of the bead was observed in oxidising flame due to the formation of202329 January, Shift 1 · Q47