elliptical
spiral
circular
spherical
Correct answer is D
The shape of the S-orbital is spherical.
The constituent common to duralumin and alnico is
Co
Mn
Al
Mg
Correct answer is C
Constituents of duralumin are: Al, Cu, Mg, Mn.
Constituents of Alnico are: Al, Ni and Co
In 1909, the alloy of duralumin was discovered by Alfred Wilon consisting of 94% Al, 4% Cu, 1% Mg and 1% Mn(Manganese)
Alnico is an acronym referring to a family of iron alloys which in addition to iron are composed primarily of Al, Ni and Co.
The general formula of alkanones is
RCHO
RCOR'
RCOOH
RCOOR
Correct answer is B
Alkanones also known as ketones have the general formula RCOR'
Right leading to the production of more SO3(g)
Right leading to the production of more SO2(g)
Left leading to the production of more SO2(g)
Left leading to the production of more SO3(g)
Correct answer is A
No explanation has been provided for this answer.
2AI(s) + 6H2SO4(1) \(\to\) AI2(SO4)3(aq) + 6H2O(1) + 3SO2(g)
2AI(s) + 3H2SO4(1) \(\to\) AI2(SO4)3(aq) + 6H2O(1) + 3SO2(g)
2AI(s) + 4H2SO4(1) \(\to\) AI2(SO4)3(aq) + 8H2O(1) + 3SO2(g)
2AI(s) + 5H2SO4(1) \(\to\) AI2(SO4)3(aq) + 8H2O(1) + 3SO2(g)
Correct answer is A
No explanation has been provided for this answer.
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