Question based on following passage :
Adsorption is the process of attracting and retaining the adsorbate molecules on the surface of adsorbent. It is of two types i.e. Physisrption and chemisorption. To increase the rate of reaction, the substance called 'catalyst' is added. Promotors enhance the activity of catalyst while poison decrease the catalyst activity. Solutions may be true solution, suspension and colloids. Colloids are heterogenous but quite stable. On the basis of nature of interaction, colloids may be Lyophilic or Lyophobic. On the basis of type of dispersed phase particles, there may be multimolecular colloids, macromlecular colloids and associated colloids. The congulation of colloids may be done by boiling, dialysis or by mixing oppositely charged sols.
Reason for the stability of colloidal solution is :

Match List-l with List-II

List-l (Complex)	List-II (Property)
(A) \(\left[ CoF _6\right]^{3-}\)	(I) \(d^5\), high spin
(B) \(\left[ Fe ( CN )_6\right]^{4-}\)	(II) \(d^6\), high spin
(C) \(\left[ FeF _6\right]^{3-}\)	(III) \(d^5\), low spin
(D) \(\left[ Mn ( CO )_6\right]^{2+}\)	(IV) \(d^6\), low spin

Choose the correct answer from the options given below :

Pick the reactions which can be used to distinguish between n-propyl alcohol and isopropyl alcohol.
(A) Haloform reaction
(B) Dehydration
(C) Dehydrogenation with \(\mathrm{Cu} / 573 \mathrm{~K}\)
(D) Oxidation with \(\mathrm{CrO}_3\)
Choose the correct answer from the options given below:

What amount of bromine will be required to convert \(6 g\) of phenol into 2,4,6-tribromophenol?

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.
For the four successive transition elements given below, the stability of +2 oxidation state will be:
A. \(\operatorname{Cr}( Z =24)\)
B. \(Mn ( Z =25)\)
C. \(Fe ( Z =26)\)
D. \(Co ( Z =27)\)
Choose the correct answer from the options given below:

Which of the following statements are true?
(A) Decomposition of gaseous ammonia on a hot platinum surface is a zero order reaction.
(B) The rate of a reaction increases with the passage of time.
(C) A catalyst does not change the equillibrium of a reaction.
(D) The molecularity of a reaction can be zero, fraction and negative.
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What will be the product formed when crude metal of Zirconium is heated in an evacuated vessel with iodine?

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.
Decreasing order of boiling point of group 15 hydrides is:
A. \(NH _3\)
B. \(PH _3\)
C. \(AsH _3\)
D. \(SbH _3\)
E. \(BiH _3\)
Choose the correct answer from the options given below:

Which of the following animal shows adaptive radiation?

The area included between \(y^2=4 x, y=x+1\) and x-axis is :

Failure to segregation of chromatids during cell division cycle which involves gain or loss of chromosome(s) is called:

Read the passage carefully and answer the questions
Many halogen containing organic compounds are present in nature and some of them are clinically useful. These classes of organic compounds find a wide range of applications in our daily life as well as in industries. Many of the polyhalogen compounds are useful too in agriculture. However, some of these compounds cannot be easily decomposed and are thus considered to be environmental hazards. These halo compounds are prepared via different synthetic routes where a variety of organic compounds can be used as substrates such as amines, hydrocarbons etc. They are used as solvents for relatively non-polar compounds. These compounds exhibit substitution and elimination reactions, in addition to their reactions with different metals, which leads to the formation of a versatile starting material for others organic compounds.
Alkyl halides react with sodium in dry ether and give hydrocarbon containing double the number of carbon atom present in the halides. The reaction is known as:

The de Broglie wavelength of an electron having kinetic energy 56 eV is :