Which one of the following 1 molal aqueous solutions will show maximum freezing point depression?

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

Read the passage carefully and answer the questions.
Electrochemistry is the study involving two types of processes. One type involves the production of electricity from the energy released during a spontaneous chemical reaction. Galvanic cells like Daniel cells are used to produce electricity from the redox reaction. Nernst equation of a galvanic cell gives the relation between the standard cell potential and the concentration of the species involved in the redox reaction. The second type of study involves the cells in which electrical energy is used to bring about the chemical reactions in a non-spontaneous process. The conductance of electrolytic solution depends on many factors including the nature of the electrolyte and the dimensions of the electrolytic cell.
When KCl is dissolved in water, the Potassium ion is;

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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.
Which of the following is not a surface phenomenon?

In the reaction \(\left( CH _3\right)_3 C - O - CH _3+ HI \rightarrow\) Products, \(CH _3 OH\) and \(\left( CH _3\right)_3 CCl\) are the products and not \(CH _3 I\) and \(\left( CH _3\right)_3 COH\). It is because:
(A) In step 2 of the reaction, the departure of leaving group ( \(HO - CH _3\) ) creates less stable carbocation.
(B) In step 2 of the reaction, the departure of leaving group ( \(HO - CH _3\) ) creates more stable carbocation.
(C) The reaction follows an SN1 mechanism.
(D) The reaction follows SN2 mechanism.
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Aspartame is most successful artificial sweetener but is only limited to cold food and cold drinks because:

Match List I with List II

LIST I	LIST II
A. Serotonin	I. Antihistamine
B. Phenelzine	II. Antibiotic
C. Terfenadine	III.Tranquilizer
D. Vancomycin	IV. Anti depressant drug

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If \(A\) and \(B\) are non singular square matrices of the same order,
then which of the statements are true ?
(A) \((\operatorname{adj} A)(\operatorname{adj} B)=(\operatorname{adj} B)(\operatorname{adj} A)\)
(B) \((A B)^T=A^T B^T\), if \(A^T\) denotes transpose of \(A\)
(C) \((A B)^{-1}=B^{-1} A^{-1}\)
(D) Multiplication of matrices is not commutative

The technique in which the semen collected either from the husband or the donor is artificially introduced into the uterus is known as-

If matrices \(A=\left[\begin{array}{lll}1 & 2 & 3\end{array}\right]\) and \(B=\left[\begin{array}{l}1 \\ 2 \\ 3\end{array}\right]\), then \(B A\) is equal to:

Arrange the metal ions of the following compounds in increasing order of oxidation number :
(A) \(\text{TiCl}_3\)
(B) \(\text{CrF}_6\)
(C) \(\text{ZnO}\)
(D) \(\text{Mn}_2\text{O}_7\)
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The chemical composition of Tollens' reagent is

Match the electromagnetic waves in Column-l with production methods in Column-II

List-I (Electromagnetic Waves)	List-II (Production Methods)
(A) Microwaves	(I) LC oscillator
(B) Infrared	(II) Magnetron
(C) X-rays	(III) Vibration of atoms/molecules
(D) Radio waves	(IV) Bombarding large atomic number metal target with fast-moving electrons

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