Which one does not give borax bead test_________________?

Related Mcqs:

1. Which of the following does not give Borax bead test ?

   A. Cu
   B. Cr
   C. Ni
   D. A1

2. The coloured glassy mass in borax bead test is due to the formation of___________________?

   A. metal borate
   B. metal meta borate
   C. metal boride
   D. metal silicate

3. In borax bead test which compound is formed_________?

   A. Ortho burate
   B. Meta borate
   C. Double oxide
   D. Tetra borate

   Submitted by: Muhammad Ali Kunbhar

4. Borax is a white crystalline solid and it is_________________?

   A. More soluble in cold water
   B. More soluble in hot water
   C. Insoluble in water
   D. Soluble only in organic solvents

5. Aqueous solution of borax above 62°C gives crystals of________________?

   A. Na2B4O7.4H2O
   B. Na2B4O7.5H2O
   C. Na2B4O7.2H2O
   D. Na2B4O7.10H2O

6. Which of the following substances does not give iodoform test ?

   A. acetaldehyde
   B. ethyl alcohol
   C. methyl alcohol
   D. acetone

7. Which of the following substances does not give iodoform test ?

   A. acetaldehyde
   B. ethyl alcohol
   C. methyl alcohol
   D. acetone

8. Nitrates of which pair of elements give different products on thermal decomposition ?

   A. Na K
   B. Mg Ca
   C. Li Na
   D. Li Ca

9. Which alcohol will undergo elimination reaction to give alkene in the presence of acidic potassium dichromate ?

   A. Primary alcohol
   B. Secondary alcohol
   C. Tertiary alcohol
   D. All of above

10. Give Electronic configuration of Sodium:

    A. 1s2,2s2,2p6
    B. 1s2,2s2,2p6,3s2
    C. 1s2,2s2,2p6,3s1
    D. None of these

    Submitted by: Naintara Mustafa