The colour of methyl orange in alkaline medium is
The colour of methyl orange in alkaline medium is A. yellow B. pink C. orange D. red Correct…
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Coffee stains can best be removed by
Coffee stains can best be removed by A. Kerosine B. turpentine C. a solution of borax in water…
Carbon (II) oxide is considered dangerous if inhaled mainly because it
Carbon (II) oxide is considered dangerous if inhaled mainly because it A. can cause injury to the nervous…
Substance employed as drying agents are usually
Substance employed as drying agents are usually A. amphoteric B. hygroscopic C. efflorescent D. acidic Correct Answer: Option…
Calculate the solubility in mol dm-3 of 40g of CuSO4 dissolved in 100g of water…
Calculate the solubility in mol dm-3 of 40g of CuSO4 dissolved in 100g of water at 120oC. [Cu…
12D + 13T → 24He + 01n + energy The reaction above illustrates
12D + 13T → 24He + 01n + energy The reaction above illustrates A. alpha decay B. artificial…
A noble gas with a high power of fog penetration used in aerodrome beacons is
A noble gas with a high power of fog penetration used in aerodrome beacons is A. krpton B.…
Permanent hardness of water can be removed by
Permanent hardness of water can be removed by A. filtration B. adding slaked lime C. adding caustic soda…
The maximum number of electrons in the L shell of an atom is
The maximum number of electrons in the L shell of an atom is A. 2 B. 8 C.…
Elements in the same period in the periodic table have the same
Elements in the same period in the periodic table have the same A. number of shells B. atomic…