Sensitive weighing balance
Cathoda ray tube
Mass spectrometer
Geiger muller counter
Eudiometer
Correct answer is C
No explanation has been provided for this answer.
Hydrogen is used for the following except
manufacturing of ammonia
synthesis of hydrochloric acid
extinguishing fire
conversion of coal to petrol
manufacture of margarine
Correct answer is C
No explanation has been provided for this answer.
In solution, aminoethanoic acid (glycine) can be represented as NH+3 CH2COO. This implies that it
is soluble in all inorganic liquids
can function as a weak acid or a weak base
does not form salt with mineral acids
is highly acidic
cannot form esters with alkanols
Correct answer is B
No explanation has been provided for this answer.
River contaminated by alkali waste will have a pH of about.
1
3
5
7
9
Correct answer is E
No explanation has been provided for this answer.
ethene
propane
butane
propene
propyne
Correct answer is D
X + \(Br_2\) → \(CH_3CHBrCH_2Br\)
The compound must be propene because it is unsaturated and does react with bromine water to form 1,2, - dibromo- propane, unlike propyne, which will give a different product.