Class 12th

The probability that a randomly chosen one-one function from the set $\left\{a,b,c,d\right\}$ to the set $\left\{1,2,3,4,5\right\}$ satisfies f(a) + 2f(b) – f(c)  = f(d) is:

The major product 'A' of the following given reaction has _________ sp² hybridized carbon atoms.

2, 7-Dimethyl 1-2-6- octadiene  A

Major Product

Number of electrophilic centres in the given compounds is _________.

A 0.166 g sample of an organic compound was digested with conc. H₂SO₄ and then distilled with NaOH. The ammonia gas evolved was passed through 50.0 mL of 0.5 N H₂SO₄. The used acid required 30.0 mL of 0.25 N NaOH for complete neutralization. The mass percentage of nitrogen in the organic compound is ___________.

In the cobalt-carbonyl complex : [Co₂(CO)₈], number of Co-Co bonds is “X” and terminal CO lignads is “Y”. X + Y = __________.

Let the plane ax + by + cz = d pass through (2, 3, -5) and its perpendicular to the planes

2x + y – 5z = 10 and  3x + 5y – 7z = 12.

If a, b, c, d are integers d > 0 and  then the value of a + 7b + c + 20d is equal to:

A 0.166 g sample of an organic compound was digested with conc. H₂SO₄ and then distilled with NaOH. The ammonia gas evolved was passed through 50.0 mL of 0.5 N H₂SO₄. The used acid required 30.0 mL of 0.25 N NaOH for complete neutralization. The mass percentage of nitrogen in the organic compound is ___________.

The difference in oxidation state of chrominum in chromate and dichromate salts is _________.

The difference in oxidation state of chrominum in chromate and dichromate salts is _________.