Solution:(b) The compounds having more acidic strength have less pKa value. −F is a strong electron withdrawing group. More number... View Article
(I) TeF6 is hydrolysed to form H6TeO6 TeF6 + 6H2O → 6HF + H6TeO6 (II) SF6 atom is sterically protected... View Article
Solution: We know that: vapour density =½ Mavg Mavg = total mass/ total moles mass of NH3 = 68 % = 68 gm... View Article
Solution: Given 6.84% (wt/vol.) solution of cane sugar means, weight of cane sugar = 6.84gm Volume = 100 ml Molecular... View Article
Solution: The name of complex is dichlorobis (ethylenediamine) cobalt (III) chloride The oxidation state of cobalt is +3 Net charge... View Article
Ans:(d) sp3+ s In XeO3, Ground state of electronic configuration Xe = [Kr] 4d10 5s2 5p6 Excited state of electronic... View Article
Metal oxides in lowest oxidation states are more basic. On moving along a period,the metallic character decreases. So the basic... View Article
Clearly we can see from the figure given below, on jumping 4 units to the right of -2, we land... View Article
Here, AB is the height of a tower. CB=20m Now, tan 60 = AB/CB √3 = AB/20 AB = 20√3 Therefore, the height of... View Article
Given, ABCD is an isosceles trapezium. AB || CD AB = 20 cm CD = 10 cm Length of each... View Article
Answer: B. QP > QS According to the given condition, ∠QPS=∠RPS By external angle theorem, ∠PSQ=∠RPS+∠PRS ⇒∠PSQ=∠QPS+∠PRS ⇒∠PSQ>∠QPS In a triangle,... View Article
Using section formula, if a point (x,y) divides the line joining the points (x1, y1) and (x2, y2) in the ratio... View Article
General equation of parabola, y2 = -4ax Focus (-a, 0) = (-2, 0) a = 2 y2 = -4(2)x =... View Article
Square root of 1764 = √(2 x 2 x 3 x 3 x 7 x 7) = 2 x 3 x... View Article
The formula to calculate the compound interest monthly is given by: Compound interest = Amount – Principal CI = P(1... View Article
If HCF of two numbers is 1, the two numbers are called relatively prime or co-prime.
Given, the two lines are: l1 = x(2+6k)+y(3−k)+4+12k=0 ……(i) l2 = 7x+5y−4=0 ... View Article
Solution: Derivative of tan inverse x \(\begin{array}{l}\frac{d}{dx}tan^{-1}x=\frac{1}{1 + x^{2}}\end{array} \) Derivation We use the following identities and formulas. Derivative of... View Article
Solution: We have to find the derivative of cos 2x. To differentiate cos 2x, we use the chain rule. Derivative... View Article
Solution: A number that is divisible only by itself and 1 is called a prime number. A prime number has... View Article
