Match the property given in List-l with the element given in List-Il

List-I (Property)	List-ll (Element)
(A) Lanthanoid, which can show +2 oxidation state	(I) Pm
(B) Radioactive lanthanoid	(II) Lu
(C) Lanthanoid which has \(4 f^{\wedge} 7\) electronic configuration in +3 oxidation state	(III) Eu
(D) Lanthanoid which has \(4 f^{\wedge}\{14\}\) electronic configuration in +3 oxidation state	(IV) Gd

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Read the passage carefully and answer the questions based on the passage:
Alcohols are versatile compounds as they can act as both nucleophile and electrophile. They undergo reactions based on cleavage of \(\mathrm{O}-\mathrm{H}\) and \(\mathrm{C}-\mathrm{O}\) bonds. The cleavage of \(\mathrm{O}-\mathrm{H}\) bond reflects the acidic character of alcohols. However they are weaker acids than water, phenol and carboxylic acids. Alkoxide ion formed by loss of proton from the OH group of alcohols reacts with water to form the corresponding conjugate acid - base pair. They act as Bronsted base due to presence of unshared electron pairs on oxygen.Both alcohols and phenol react with carboxylic acids, acid chlorides and anhydrides to form esters. The introduction of acetyl group in alcohols or phenol is known as acetylation. Alcohols react with hydrogen halides to form alkyl halides which form the basis of Lucas test. They also undergo acid catalyzed dehydration to form alkenes. Alcohols can be easily oxidized with variety of oxidizing agents. The nature of the product depends on the type of oxidizing agent and the nature of alcohol.
Lucas reagent is

Match List-l with List-ll

List-I	List-II
(A) Wurtz-Fittig reaction	(I) \(\ CH_3COCI\) and Anhyd. \(\ AICI_3\)
(B) Chiral	(II) CFCs
(C) Friedel-Crafts Acylation	(III) Alkylarene
(D) Freons	(IV) Non-superimposable mirror images

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Amines are reactive in nature, mainly due to difference in electronegativity between Nitrogen and Hydrogen and, due to lone pair of electrons on Nitrogen. Amines behave like nucleophiles and as good lewis bases and there are various reactions to support this. Different degree of amines differ in their reactivity due to steric hinderance and electronic effects. Aromatic amines are less basic due to + R effect, hence have higher pkb value than aliphatic amines. Basic strength of amines also depends on stability of corresponding conjugate acid in aqueous medium.
Which of the following will be having lowest \(p K_b\) in gaseous medium?

The magnetic moment of \(Cu ^{2+}\) ion \(( Z =29)\) is :

Alum helps in purifying water by :
A. Coagulation of mud particles
B. Sedimentation of mud particles.
C. Dialysis
D. forming true solution with water
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Which of the following method is used for purification of water

A relation \(R\) in the set \(A=\{1,2,3,4\}\) is given by \(R=\{(1,1),(2,2),(1,2),(2,3),(3,4),(4,4),(1,3),(2,4),(1,4)\}\) is

Match List - I with List - II.

List-I	List-II
(A) Cuckoo lays egg in crow’s nest	(IV) Brood parasitism
(B) Orchid grows in mango tree	(I) Commensalism
(C) Ticks live on skin of dogs	(II) Parasitism
(D) Species of Wasp and fig species	(III) Mutualism

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The unit of molar conductivity is

The behavior and pattern of the data in a time series is NOT based on which of the following component?

The core of electromagnets are made of ferromagnetic material like soft iron because the soft iron has-

A dentist has a small mirror of focal length \(1 . 6 ~ c m\). He observes the cavity in the tooth of a patient by holding the mirror at a distance of 8 mm . from the cavity. The magnification is: