For the following questions answer them individually
Given below are h¥o statements:
Statement I: Hybridisation, shape and spin only magnetic moment of $$K_{3}[Co(CO_{3})_{3}]$$ is $$sp^{3}d^{2}$$, octahedral and 4.9 BM respectively.
Statement II: Geometty, hybridisation and spin only magnetic moment values (BM) of the ions $$[Ni(CN)_{4}]^{2-},[MnBr_{4}]^{2-}\text{ and }[CoF_{6}]^{3-}$$ respectively are square planar, tetrahedral, octahedral;$$dsp^{2},sp^{3},sp^{3}d^{2}$$ and 0, 5.9, 4.9.
In the light of the above statements, choose the correct answer from the options given below
Arrange the following carbanions in the decreasing order of stability.
image
Choose the correct answer from the options given below:
Consider three metal chlorides x, y and z, where x is water soluble at room temperature, y is sparingly soluble in water at room temperature and z is soluble in hot water. x, y and z are respectively
At 27 °C in presence of a catalyst, activation energy of a reaction is lowered by $$10KJ mol^{-1}$$. The logarithm of ratio of $$\frac{k(catalysed)}{k(uncatalysed)}$$ is......
(Consider that the frequency factor for both the reactions is same)
A hydroxy compound (X) with molar mass 122 g $$mol^{-1}$$ is acetylated with acetic anhydride, using a large excess of the reagent ensuring complete acetylation of all hydroxyl groups. The product obtained has a molar mass of 290 g $$mol^{-1}$$. The number of hydroxyl groups present in compound (X) is:
Anange the following alkenes in decreasing order of stability.
image 1
image 2
image 3
image 4
Choose the correct answer from the options given below:
Given below are two statements:
Statement I: 'C - Cl' bond is stronger in $$CH_{2}=CH-Cl\text{ and }CH_{3}-CH_{2}-Cl$$
Statement II: The given optically active molecule, image
hydrolysis gives a solution that can rotate the plane polarized light.
In the light of the above statements, choose the correct answer from the options given below
Consider a mixtm-e 'X' which is made by dissolving 0.4 mol of $$[Co(NH_{3})_{5}SO_{4}]Br$$ and 0.4 mol of $$[Co(NH_{3})_{5}Br]SO_{4}$$ in water to make 4 L of solution. When 2 L of mixture 'X' is allowed to react with excess of $$AgNO_{3}$$,it fonns precipitate 'Y'. The rest 2 L of mixture 'X' reacts with excess $$BaCl_{2}$$ to fonn precipitate 'Z'. Which of the following statements is CORRECT?
Given below are two statements:
Statement I: K > Mg > Al > B is the correct order in terms of metallic character.
Statement II: Atomic radius is always greater than the ionic radius for any element.
In the light of the above statements, choose the correct answer from the options given below
Given below are statements about some molecules/ions.
Identify the CORRECT statements.
A The dipole moment value of $$NF_{3}$$ is higher than that of $$NH_{3}$$.
B. The dipole moment value of $$BeH_{2}$$ is zero.
C. The bond order of $$O_{2}^{2-}$$ and $$F_{2}$$ is same.
D. The formal charge on the central oxygen atom of ozone is -1 .
E. In $$NO_{2}$$, all the three atoms satisfy the octet rule, hence it is very stable.
Choose the correct answer from the options given below:
