Aqueous solution of which salt will not contain ons with the electronic configuration 1s22s22p63s23p6?
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If the coefficients of x3and x4in the expansion of (1+ax+bx2)(1−2x)18in powers of x are both zero, then (a, b) is equal to
The intermolecular interaction that is dependent on the inverse cube of distance between the molecule is :
Arrange the following compounds in order of decreasing acidity:
If the vectors AB=3i^+4k^ and AC=5i^−2j^+4k^are the sides of a triangle ABC, then the length of the median through A is
A gaseous hydrocarbon gives upon combustion 0.72 g of water and 3.08 g of CO2. The empirical formula of the hydrocarbon is:
If ∫f(x)dx=ψ(x), then ∫x5f(x3)dxis equal to
The negation of s∨( r∧s) is equivalent to :
A sonometer wire of length 1.5 m is made of steel. The tension in it produces an elastic strain of 1 %. What is the fundamental frequency of steel if density and elasticity of steel are 7.7×103kg/m3and2.2×1011N/m2 respectively?