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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]
Elements in the periodic table are arranged in the order of their
Which important nitrogen-containing compound is produced in Haber's process?
What mass of magnesium would be obtained by passing a current of 2 amperes for 2 hours 30 mins, through molten magnesium chloride?
[1 faraday = 96500C, Mg = 24]
Which of the following gases contains the least number of atoms at s.t.p?
The IUPAC nomenclature of the compound
H\(_3\)C - CH(CH\(_3\)) - CH(CH\(_3\)) - CH\(_2\) - CH\(_3\)
A compound contains 40.0% carbon, 6.7% hydrogen and 53.3% oxygen. If the molar mass of the compound is 180. Find the molecular formula.
[H = 1, C = 12, O = 16]
In the reaction:
M + N → P
ΔH = +Q kJ
Which of the following would increase the concentration of the product?
Sulphur exists in six forms in the solid state. This property is known as
In the reaction between sodium hydroxide and tetraoxosulphate (VI) solutions, what volume of 0.5 molar sodium hydroxide would exactly neutralize 10cm\(^3\) of 1.25 molar tetraoxosulphate (vi) acid?
Which of the following is a physical change?