When a dielectric slab is introduced in between the plates of a charged capacitor with battery connected across the plates, following are the observations. Choose which observation is incorrect?

A parallel plate capacitor filled with oil of dielectric constant \( k = 3 \), has a capacitance \( C \). After removing the oil between the plates, the capacitance of the capacitor will become:

Two identical cells each of emf E and internal resistance r are connected in parallel, their equivalent emf and equivalent internal resistance respectively will be:

Find the equivalent capacitance between the points A and B.

A field of \( 2 \times 10^{3} \text{ A/m} \) produces a flux of \( 2.4 \times 10^{-5} \text{ Wb} \) in an iron bar having area of cross-section \( 0.2 \text{ cm}^2 \). The relative permeability of medium is:

A galvanometer has a resistance of 8 \( \Omega \). It is shunted by a wire of resistance 2 \( \Omega \). If the total current is 2 A, the current passing through the shunt is

Which of the following statements best describe the temperature dependence of resistances of Cu and Si in the temperature range 27° to 127°C.

Which of the following pair of compounds exhibits the same color in aqueous solution?

An alternating emf \( \varepsilon = 220 \sin(50\pi t) \) is applied to an inductive circuit having self-inductance \( L = \sqrt{2} \pi^{-1} \text{ H} \). What will be the reading of an a.c. ammeter connected in the circuit?

Introduction of which of the following on Galopagos islands caused extinction of Abingdon tortoise ?

As per the graph given below:

Match List - I with List - II

LIst - I (Function/Area/point)	List - II (Representation)
(A) Consumers Surplus	(I) y = g(x)
(B) Supply function	(II) v
(C) Demand function	(III) s
(D) Equilibrium point	(IV) y = f(x)

Choose the correct answer from the options given below:

Read the passage carefully and answer the following questions
Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O-H bond along with the reactions involving the complete - COOH group.
Arrange the following in the increasing order of their \(p K_{ a }\) values :
(A) \(CF _3- COOH\)
(B) \(O _2 N- CH _2- COOH\)
(C) \(NC - CH _2- COOH\)
(D) \(H - COOH\)
Choose the correct answer from the options given below :

Identify the correct facts about downstream processing.
(A) The processes include separation and purification.
(B) The product has to be formulated with suitable preservatives.
(C) The prepared formulation does not require clinical trials as in case of drugs.
(D) Strict quality control testing for each product is also required.
Choose the correct answer from the options given below: