The geometry of $ClO_3^-$,according to valence shell electron pair repulsion $(VSEPR)$ theory will be

$A$ gaseous mixture consists of $16 \, g$ of helium and $16 \, g$ of oxygen. The ratio $(C_p / C_v)$ of the mixture is

The value of $a$ for which the equations $x^3+ax+1=0$ and $x^4+ax^2+1=0$ have a common root is

$A$ particle moves along a circle of radius $\frac{20}{\pi} \; m$ with constant tangential acceleration. If the velocity of the particle is $80 \; m/s$ at the end of the second revolution after motion has begun,the tangential acceleration is:

The lines represented by the equation $x^2-y^2-x+3y-2=0$ are :

$A$ square is inscribed in the circle $x^{2} + y^{2} - 2x + 4y - 93 = 0$ such that its sides are parallel to the coordinate axes. The coordinates of its vertices are: