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The noble gases owe their inactivity to
Neutral atoms of neon with atomic number 10 have the same number of electron as
3Cu + pHNO3 →3Cu(NO)2 + 4H2 O + xNO
In the equation above, the values of p and x respectively are
The filter in the cigarette reduces the nicotine content by
Which of the following is physical change?
The compound above is
The major product of the dehydration of the compound above is?
In the diagram above, the curve that represents the production of oxgyen gas from the decomposition of KCIO3 in the presence of MnO2 catalyst is
If 0.75 mole of cyclopropane and 0.66 mole of oxygen are mixed in vessel with a total pressure of 0.7 atmosphere, what is the partial pressure of oxygen in the mixture
\(^{14}\) \(_6\)C → X + β
X in the equation above represents
The postulate of Dalton's atomic theory which still holds is that
The processes which return carbon (IV) oxide to the atmosphere include
A fixed mass of gas has a volume of 92\(cm^3\) at 3ºC. What will be its volume at 18ºC if the pressure remains constant?
Which of the following chloride would exhibit the least ionic character?
Which of the following statement is true of a proton?
A rock sample was added to cold dilute HNO3. The gas evolved was passed into a solution of acidified K2Cr2O7 and the solution turned green. The sample contains
The intermediate product formed when ethanol is progressively oxidized to ethanoic acid with potassium heptaoxodichromate (IV) is
Hydrogen is readily released when dilute hydrochloric acid reacts with