Least ionic compound among the following is

chemistry-

The electronegativities of F,Cl,Br and I are 4.0,3.0,2.8,2.5 respectively. The hydrogen halide with a high percentage of ionic character is

chemistry-General

The eccentricity of the hyperbola with asymptotes 3x + 4y = 2 and 4x – 3y = 2 is

The number of ways that '6' rings can be worn on the 4 - fingers of one hand is

It is important to note that we have used a basic fundamental principle of counting to find the total ways. Also, it is important to notice that each ring has 4 ways as it has not been given that each finger must have at least one ring. So, there can be 6 rings in a finger alone and remaining all the fingers empty.

The equation of the ellipse with axes along the x – axis and the y – axis, which passes through the points P (4, 3) and Q (6, 2) is

physics

Which area shows the displacement covered by the particle after time t.

physicsGeneral

Chemistry-

Polarization power of a cation increases when

Chemistry-General

physics

Here are the graphs of v→ t of moving body. which of them is not suitable

physicsGeneral

The number of values of c such that st. line y = 4x + c touches the curve $fraction numerator x to the power of 2 end exponent over denominator 4 end fraction plus y to the power of 2 end exponent equals 1$ is

Tangents are drawn to the ellipse $fraction numerator x to the power of 2 end exponent over denominator 9 end fraction plus fraction numerator y to the power of 2 end exponent over denominator 5 end fraction equals 1$ at the ends of the latus rectum. The are of the quadrilateral so formed is

A tangent to the ellipse x² + 4y² = 4 meets the ellipse x² + 2y² = 6 at P and Q. The angle between the tangents at P and Q of the ellipse x² + 2y² = 6 is

physics

Here are the graphs of x→ t of moving body. which of them is not suitable?

physicsGeneral

A cubic polynomial f(x) = ax³ + bx² + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals

$I f space a space f u n c t i o n space h a s space a space tan g e n t space a t space a space p o i n t space x equals a space comma space t h e n comma space i t space m e a n s comma space i t space i s space t h e space c r i t i c a l space p o i n t space o f space t h a t space f u n c t i o n space a n d space t h e space d e r i v a t i v e space o f space t h e space f u n c t i o n space i s space z e r o space a t space t h a t space p o i n t. space P e r f o r m space t h e space c a l c u l a t i o n s space c a r e f u l l y comma space t o space a v o i d space s i l l y space m i s t a k e s. space O n e space s h o u l d space k n o w space h o w space t o space r e a d space a space g r a p h space t o space s o l v e space s u c h space q u e s t i o n s.$

A cubic polynomial f(x) = ax³ + bx² + cx + d has a graph which touches the x-axis at 2, has another x-intercept at –1 and has y-intercept at –2 as shown. The value of, a + b + c + d equals