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Hydrogen diffused through a porous plug
The emission of two successive beta particles from the nucleus \(^{32} _{15} P\) will produce
The velocity, V of a gas is related to its mass, M by (k = proportionality constant)
X is a substance which liberates CO\(_2\) on treatment with concentrated H\(_2\)SO\(_4\). A warm solution of X can decolorize acidified KMnO\(_4\). X is
Which of the following conditions will most enhance the spontaneity of a reaction?
200cm\(^3\) of 0.50mol/dm\(^3\) solution of calcium hydrogen trioxocarbonate (IV) is heated. The maximum weight of solid precipitated is
Which of the following sets of operation will completely separate a mixture of sodium chloride, sand and iodine?
Methane is prepared in the laboratory by heating a mixture of sodium ethanoate with soda lime. The chemical constituent(s) of soda lime is/are
Hydrogen bond is a sort of
The oxidation state(s) of nitrogen in ammonium nitrite is/are
Which quantum divides shells into orbitals?
The shapes of water, ammonia, carbon (iv) oxide and methane are respectively
A cell shorthand notation can be written as A / A\(^+\) // B\(^{2+}\) /B. The double slash in the notation represents the
Consider the reaction: A + 2B\(_{(g)} \rightleftharpoons \) 2C + D\(_{(g)}\) (\(\Delta\)H = +ve)
What will be the effect of decrease in temperature on the reaction?
The following are isoelectronic ions except
The hybridization in the compound \(CH_3 - CH_2 - C \equiv H\) is
The electronic configuration of element Z is 1s\(^2\) 2s\(^2\) 2p\(^6\) 3s\(^2\) 3p\(^1\). What is the formula of the compound formed between Z and tetraoxosulphate (VI) ion.
Which of the following could not be alkane?
The two ions responsible for hardness in water are
What volume of 0.100M sodium trioxonitrate (V) solution contains 5g of solute ?
[Na = 23, N = 14, O = 16]