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Magnesium Hydroxide Is A Strong Base. (True / False)

Magnesium hydroxide [Mg(OH)2] is a weak base as it is less soluble in water The above-given statement is false. Explore... View Article

In The Oxidation Of N2H4 To N2 Equivalent Weight Of N2H4 Would Be________

The oxidation state of N in hydrazine and nitrogen molecule is -2 and 0, respectively. Hence, the total change in... View Article

Poor Conductors Are Known As ____.

The poor conductors are known as Insulators. Insulators are the electrical material in which the electric current does not flow... View Article

Java Was Originally Invented By

James Gosling originally invented java at Sun Microsystems. Explore more such questions and answers at BYJU’S.

Estimate The Square Root Of 500 To The Nearest Whole Number

We know that, \(\begin{array}{l} (22)^{2} = 484 and (23)^{2} = 529 \end{array} \) The two consecutive perfect squares among which... View Article

Hydroxides Of Alkali Metals And Most Alkaline Earth Metals Are Strong Bases. (True / False)

The above-given statement is true. Hydroxides of alkali metals and most alkaline earth metals are strong bases. The strength of... View Article

Write Any Four The Necessary Conditions For Interference Of Light

The four necessary conditions for the interference of light are: The light source should be monochromatic Light waves should be... View Article

Allotropes Of Oxygen Are______

Allotropes of oxygen are\(\begin{array}{l} O_{2} and O_{3} \end{array} \) Diatomic oxygen – \(\begin{array}{l} O_{2} \end{array} \) Ozone -\(\begin{array}{l} O_{3} \end{array}... View Article

State true or false: A polynomial cannot have more than one zero.

The statement is false. The number of zeroes of a polynomial depends on the degree of the polynomial.

Prove that the sum of the angles of a quadrilateral is 360.

If a diagonal is drawn to the quadrilateral, 2 triangles are obtained. The sum of the angles in a triangle... View Article

An aquarium is in the form of a cuboid whose external measures are 80 cm × 30 cm × 40 cm. The base side faces and back face are to be covered with a coloured paper. Find the area of the paper needed?

Area of paper required = area of base + 2 area of side + area of back = (80 ×... View Article

How do you evaluate ⁸P₃?

Answer: Permutation relates to the act of arranging all the members of a set into some sequence or order. In other... View Article

The sum of 4 numbers in GP is 60 and the AM of the first and last number is 18. Find the first term and the common difference of the GP.

Answer: In Maths, Geometric Progression (GP) is a type of sequence where each succeeding term is produced by multiplying each... View Article

Find (d / dx) (cos² x) by using chain rule.

Differentiating by chain rule, \(\begin{array}{l}\begin{array}{l} \left(\frac{\mathrm{d}({cosx})^{2}}{\mathrm{~d}(\cos x)}\right) \times\left(\frac{\mathrm{dcosx}}{\mathrm{dx}}\right)\\ =2 \cos x \times(-\sin x)\\ =-2 \sin x \cos x\\ =-\sin 2... View Article

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