Match the complex given in List-I with type of hybridisation given in List-II.

List-I (Complex)	List-II (Hybridisation)
(A) \([Ni(CO)_4]\)	(I) \(sp^3d^2\)
(B) \([Ni(CN)_4]^{2-}\)	(II) \(dsp^2\)
(C) \([Co(NH_3)_6]^{3+}\)	(III) \(d^2sp^3\)
(D) \([CoF_6]^{3-}\)	(IV) \(sp^3\)

Choose the correct answer from the options given below:

Certain Aldehydes, Retore and certain alcohol undergo iodoform test. Certain Aldehydes ketones undergo aldol condensation. While certain aldehydes undergo Cannizaro's reaction. Aldehydes responds to tollen reagent and fehling reagent test.
Which amongst the following will respond to Tollens' reagent test?
A. Benzaldehyde \((C_6H_5CHO)\)
B. Formaldehyde \((HCHO)\)
C. Formic acid \((HCOOH)\)
D. Acetone \((CH_3COCH_3)\)
Choose the correct option

Answer the question on the basis of passage given below:
Second period elements of p-Block differs from the rest of their group members due to their small atomic size, high electronegativity, high ionization enthalpy and absence of d-orbitals. The elements from the second period like C, N, O have unique property of forming \(p \pi-p \pi\) multiple bonds whereas other heavier elements of p-block form \(d \pi-p \pi\) multiple bonds. This changes the properties of second period elements to great extent. Also the single bond strength of the p-block elements with their own atoms gets affected by their atomic size and presence of lone pairs.
Inert pair effect also affects the properties of the p-Block elements especially for those elements which are present from 4th period onward and this happens due to poor screening effect of inner (n-1)d subshell electrons.
Phosphorus forms \(PF _5\) but nitrogen cannot form \(NF _5\) as:

Match List-l with List-II

List-l (Solutions)	List-II (Explanation)
(A) Saturated solution	(I) Solution having two components.
(B) Isotonic solutions	(II) A solution whose osmotic pressure is more than that of another.
(C) Binary solution	(III) A solution which contains the maximum amount of solute that can be dissolved in a given amount of solvent at a given temperature.
(D) Hypertonic solution	(IV) The solutions having same osmotic pressure at a given temperature.

Choose the correct answer from the options given below :

Which of the following statements about gold (Au) element are correct ?
(A) quad Gold occurs in nature in native state.
(B) quad Gold discolves in aqua-regia.
(C) quad Gold is extracted by leaching the metal with dilute NaCN .
(D) \quad Leaching is followed by replacement reaction.
Choose the correct answer from the options given below :

Elements of group-15, 16 and 17 form compounds with hydrogen with general formula MH3, \(H 2 M\) and HX (called hydrogen halides). Stability of these hydrides, along with M-H bond strength and basic nature decreases down the group. Boiling point of these hydrides mainly depends on the strength of their inter molecular forces.
Bond angle (HMH) among hydrides of group-16 decreases down the group because:

Match List - I with List - II

List - I	List - II
(A) Impurity defect	(I) NaCl with anionic sites called F centres
(B) Metal excess defect	(II) FeO with Fe3+
(C) Metal deficiency defect	(III) Non ionic solids and density of solid decreases
(D) Simple vacancy defect	(IV) NaCl with Sr2+ and cationic sites vacant

Choose the correct answer from the options given below:

The activation energy for a reaction at a temperature \(T\) K was found to be \(2.303 RT\) J/mol.
The ratio of the rate constant to Arrhenius factor is:

A convex lens of focal length 20 cm and two concave lenses of focal length 10 cm and 30 cm are placed in contact with each other. The focal length of the combined three lenses will be.

If \(x=t^2\) and \(y=t^3\), then \(\frac{d y}{d x}=6\) at \(t=\)

An \( 80 \, \Omega \) resistor is connected to a 240 V, 50 Hz AC supply. The net power consumed over a full cycle is:

A real and smaller image of an object will be produced by

The domain of the function \(y=\sin ^{-1}(x-1)+\cos ^{-1} \sqrt{x-1}\) is: