JEE Main Test 6...

The ratio of masses of oxygen and nitrogen of a particular gaseous mixture is 1 : 4. The ratio is number of their molecule is

Which of the following is absorbed by the ozone layer?

If (x, y) are any point on the parabola y² = 4x. Let P be the point that divides the line segment from (0, 0) to (x, y) in the ratio 1 : 3. Then, the locus of P is

100π phase difference = ... path difference.

An ideal gas is allowed to expand both reversibly and irreversibly in an isolated system. If T_i is the initial temperature and T_f is the final temperature, which of the following statements is correct ?

The two parabolas x² = 4y and y² = 4x meet in two distinct points. One of these is the origin and the other is

Two polaroids are placed in the path of unpolarised beam of intensity /0 such that no light is emitted from the second polaroid. If a third polaroid whose polarisation axis makes an angle 0 with the polarisation axis of first polaroid, is placed between these polaroids, then the intensity of light emerging from the last polaroid will be

For the reaction SO₂ (g) + 1/2 O₂ (g) ⇌ SO₃ (g)
if, K_p = K_c (RT)^x
where, the symbols have usual meaning, then the value of x is (assuming ideality)

CO₂ goes to air, causes green house effect and gets dissolved in water. What will be its effect on soil fertility and pH of the water?