Answer the question on the basis of passage given below :
Adsorption is a surface phenomenon and it differs from absorption which occurs throughout the body of the substance that absorbs. In physiosorption the attractive forces are mainly van der Waal's forces while in chemisorption ionic/covalent bonds are formed between particles of adsorbent and adsorbate. The catalytic activity of finely divided iron in Haber's process of ammonia manufacture can be explained by adsorption theory. Adsorption being an exothermic process, the heat of adsorption is utilised in enhancing the rate of the reaction. Adsorption has many applications being used in gas masks, control of humidity, chromatograph separation, curing diseases etc.
The modern adsorption theory lists the following steps for heterogeneous catalysis
(A) Adsorption of reactant molecules on the surface of a catalyst
(B) Occurrence of chemical reaction on the surface of a catalyst
(C) Desorption of products from a catalyst surface
(D) Diffusion of reactants to the surface of the catalyst
Choose the correct sequences of steps from the options given below:

The cell emf depends on:

Enzymes are biological catalysts. They accelerate biological reactions. Which of the following is not true about enzymes?

Arrange the following compounds in decreasing order of acidity:
(A) o-cresol
(B) Phenol
(C) m-nitrophenol
(D) o-nitrophenol
(E) Ethanol
Choose the correct answer from the options given below:

Complete the following reaction.
\(\left( C _6 H _{10} O _5\right)_n+n H _2 O \xrightarrow[393 K, 2-3 atm]{ H ^{+}} ?\)

Match List I with List II

List 1	List 2
A. Lanthanum	I. \(+3,+4\)
B. Praseodymium	I. +3
C. Neodymium	III. \(+2,+3,+4\)
D. Samarium	IV. \(+2,+3\)

Choose the correct answer from the options given below:

Answer the question on the basis of passage given below:
In the periodic table, the d-block contains the elements of group \(3\) to \(12\). The d-orbitals are progressively filled in each of the four long periods. The elements of d block referred as transition metals have partly filled d orbitals and exhibit certain characteristic properties such as variety of oxidation states, formation of coloured ions, act as catalyst and show paramagnetic behaviour.
The two inner transition metals series \(4f\) and \(5f\) are known as Lanthanoids and Actinoids respectively. The lanthanoids resemble one another more closely as compared to ordinary transition elements in any series.
In context of the Lanthanoids, which of the following statements is/are NOT correct?
A. There is a gradual decrease in the radii of the members with increasing atomic number in the series
B. Availability of \(4f\) electrons results in the formation of compounds in \(+4\) oxidation state for all the members of the series
C. Because of similar properties, the separation of lanthanoids is not easy
D. \(La(OH)_3\) is least basic among hydroxides of lanthanoids
E. Ce can act as an oxidising agent
Choose the correct answer from the options given below:

Observe the given diagram representing global biodiversity and answer the question.

Global Bio-diversity
Out of every 10 animals on earth, 7 are

A double stranded DNA fragment has 500 Adenine bases. If total number of base pairs in this fragment is 2500, then what will be the number of guanine bases?

The resistance of a given carbon resistor is \(3.6 \times 10^6 \Omega \pm 5 \%\). What are the sequence of colour strips on the resistor?

A few substances are attracted very strongly by magnetic field. They can be permanently magnetized. Their domains get oriented in the direction of the magnetic field even after magnetic field is removed. This substance is :

Point out the technique, which is not useful for the detection of cancer of internal organs.

The function \(f(x)=\left|\begin{array}{cc}x^2 & x \\ 3 & 1\end{array}\right|, x \in R\) has a: