The number of hydrogen ions in 4.9 g of tetraoxosulphate (IV) acid is? (S =…
The number of hydrogen ions in 4.9 g of tetraoxosulphate (IV) acid is? (S = 32, O =16,…
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What volume of oxygen will remain after reacting 8cm3 of hydrogen with 20cm3 of oxygen?
What volume of oxygen will remain after reacting 8cm3 of hydrogen with 20cm3 of oxygen? A. 10 cm3…
Which of the following reagents will confirm the presence of unsaturation in a compound?
Which of the following reagents will confirm the presence of unsaturation in a compound? A. Fehling’s solution B.…
Chromatography is used to separate components of mixtures which differ in their rates of?
Chromatography is used to separate components of mixtures which differ in their rates of? A. diffusion B. migration…
Which of the following is a example of a chemical change?
Which of the following is a example of a chemical change? A. Dissoultion of salt in water B.…
The general formula of alkanoates is?
The general formula of alkanoates is? A. RCHO B. R2CO C. RCOOH D. RCOOR Correct Answer: Option D…
One mole of a hydrocarbon contains 48 g of carbon. If it vapour density is…
One mole of a hydrocarbon contains 48 g of carbon. If it vapour density is 28, the hydrocarbon…
Which of the following compounds is NOT an isomers of 2,2 dimethylbutane?
Which of the following compounds is NOT an isomers of 2,2 dimethylbutane? A. 2-methylbutane B. 3-methylpentane C. 2,3-dimethylbutane…
When sodium is added to ethanol, the products are?
When sodium is added to ethanol, the products are? A. sodium hydroxide and water B. sodium hydroxide and…
In an electrolytic set-up to protect iron from corrosion, the iron is?
In an electrolytic set-up to protect iron from corrosion, the iron is? A. made cathode B. made anode…