Which metal is used as a reducing agent in Smelting______?
Which metal is used as a reducing agent in Smelting______?
A. C
B. Zn
C. Al
D. Cu
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The melting points and boiling points upto meddle of 3d- series ____________________?A. increases
B. decreases
C. remain same
D. no regular trendTreating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?
Treating phenol with formaldehyde in the presence of dilute base forms Bakelite. The process involved is_________________?A. oxidation
B. elimination
C. condensation polymerization
D. additional polymertizationThree elements needed for the healthy growth of plants are_________________?
Three elements needed for the healthy growth of plants are_________________?A. N P K
B. N K C
C. N S P
D. N Ca PPhosphene gas will be produced if phosphorous acid is subjected to___________________?
Phosphene gas will be produced if phosphorous acid is subjected to___________________?A. Oxidation
B. Reduction
C. Decomposition
D. Both b & cWhich of the following sulphates is not soluble in water ?
Which of the following sulphates is not soluble in water ?A. Sodium sulphate
B. Potassium sulphate
C. Zinc sulphate
D. Barium sulphateWhen methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?
When methl iodide and ethyl iodide are treated with sodium metal possible major products are obtained ?A. 1
B. 2
C. 3
D. 4