A. Cu
B. Cr
C. Ni
D. A1
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Related Mcqs:
- Which one does not give borax bead test_________________?
- A. Copper sulphate B. Barium sulphate C. Cobalt sulphate D. Nickel sulphate...
- 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...
- 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...
- 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...
- Aqueous solution of borax above 62°C gives crystals of________________?
- A. Na2B4O7.4H2O B. Na2B4O7.5H2O C. Na2B4O7.2H2O D. Na2B4O7.10H2O...
- Which of the following substances does not give iodoform test ?
- A. acetaldehyde B. ethyl alcohol C. methyl alcohol D. acetone...
- Which of the following substances does not give iodoform test ?
- A. acetaldehyde B. ethyl alcohol C. methyl alcohol D. acetone...
- Which of the following do not give aldol condensation reactions ?
- A. formaldehyde B. acetaldehyde C. diemthyl ketone D. propionaldehyde...
- Which one of the following methods will not give benzene ?
- A. Heating sod. Salt of Benzoic acid with soda lime B. Distilling phenol with Zn dust C. Chlorobenzene with NaOH at 360°C & 150atm. D. Hydrolysis of benzene sulphonic acid with super heated steam...
- Which of the following will give phosphoric acid one reaction with water_________________?
- A. PCI5 B. P2O3 C. P2O5 D. All of the above...
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