\(\text{C}_3\text{H}_6\text{O}\) does not form a silver mirror with Tollen's reagent but forms an oxime with hydroxylamine. It can give positive:

The following statements describe various properties of a Mercury cell :
(A) It converts energy of combustion into electrical energy
(B) It is rechargeable
(C) The cell reaction involved is Zn(Hg) + HgO(s) \(\rightarrow\) ZnO(s) + Hg(l)
(D) It is a low current device used in hearing aids
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Decreasing order of basicity for the following compounds:
(A) Ethylamine
(B) Diethylamine
(C) Ammonia
(D) Benzenamine
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Which of the following statements are correct?
A. p-Nitroaniline is a stronger base than aniline
B. Aniline is weaker basic than o-nitro aniline
C. Aniline is a weaker base than ethylamine
D. p-methyoxyaniline is stronger base than aniline
E. Aniline is weaker base than ammonia
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What is the IUPAC name of m-cresol?

Identify the incorrect statement for glucose.

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\(KMnO _4\) is prepared by the fusion of \(MnO _2\) with an alkali metal hydroxide and an oxidizing agent like \(KNO _3\) to give a dark-green manganate ion which disproportionate to give permanganate as follows.
\(\begin{array}{l}2 MnO _2+4 KOH + O _2 \rightarrow 2 K_2 MnO _4+2 H _2 O \\ 3 K_2 MnO _4+4 H ^{+} \rightarrow 2 KMnO _4+ MnO _2+2 H _2 O \end{array}\)
On heating \(K _2 MnO _4\) decomposes at 513 K to give \(K _2 MnO _4\). Permanganate ion is tetrahedral and diamagnetic
Acidified \(KMnO _4\) acts a strong oxidizing agent which oxidizes oxalic acid, ferrous ions, nitrite ion and iodides.
When one mole of \(KMnO _4\) is used for the oxidation of oxalic acid, how many moles of \(CO _2\) will be produced?

Read the passage carefully and answer the questions
Replacement of a hydrogen atom in a hydrocarbon by an alkoxy or carboxyl group yields a class of compounds known as ethers. Ethers are classified as symmetrical or unsymmetrical on the basis of groups attached to the oxygen atoms. Diethyl ether, a symmetrical ether, has been widely used as an inhalation anesthetic. Ethers can be prepared by acid catalyzed intermolecular dehydration of alcohols and Williamson's synthesis. Acid catalyzed dehydration of alcohols is not generally preferred as it gives a mixture of elimination and substitution products. In Williamson's synthesis, an alkyl halide is allowed to react with sodium alkoxide. Ethers containing substituted Alkyl groups may also be prepared by this method. The C-O bond in ether is weakly polar and is cleaved under drastic conditions with excess of hydrogen halides. In electrophilic substitution, the alkoxy group deactivates the aromatic ring and directs the incoming group to ortho and para positions.
Which type of ether is anisole ?

The Convention on Biological Diversity held in Rio de Janeiro in 1992 is popularly known as

The distance between a base pair (bp) in a DNA helix is approximately:

A manufacturer can sell x items at a price of mp 3x + 5 each. The cost price of x items is ₹\(x^2\ + 5x.
If z is the number of items she should sell to get no profit and no loss, then:

From the given standard reduction potentials, arrange the metals in decreasing order of their reducing power.
(A) \(E_{ Zn ^{2+} / Zn _{ n }}^0=-0.76 V\)
(B) \(E_{ Mg ^{2+} / Mg }^0=-2.37 V\)
(C) \(E_{ Al ^{3+} / Al }^0=-1.67 V\)
(D) \(E_{ Ag ^{+} / Ag }^0=+0.80 V\)
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Which of the following statements are correct?
A. Electrical resistivity of copper is low.
B. Temperature coefficient of resistance for semiconductors is positive.
C. On carbon resistors, colour of the second strip indicates the multiplier.
D. During charging of a cell, the terminal potential difference becomes greater than the emf of the cell.
E. The cells are connected in series to get more voltage, than cells connected in parallel.
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