List of top Questions asked in MET

An ester (A) with molecular formula \(C_9H_{10}O_2\) was treated with excess \(CH_3MgBr\) and the compound so formed was treated with conc. \(H_2SO_4\) to form olefin (B). Ozonolysis of B gave ketone with formula \(C_8H_8O\) which shows positive iodoform test. The structure of A is :
A sample of 4.12 mg of unknown alcohol is added to \(CH_3MgBr\). 1.56 mL of methane at STP was liberated. The alcohol is :
Cyclohexanol is dehydrated to cyclohexene on heating with conc. \(H_2SO_4\). If the yield of this reaction is 75% how much cyclohexene will be obtained from 100 g of cyclohexanol?
The structure for neo-heptyl alcohol is:
A set of compounds in which the reactivity of halogen atom is in ascending order is:
Which one of the following is most reactive towards nucleophilic substitution reaction?
3.92 g of ferrous ammonium sulphate crystals are dissolved in 100 mL of water. 20 mL of this solution requires 18 mL of KMnO\(_4\) during titration for complete oxidation. The weight of KMnO\(_4\) present in one liter of solution is :
What is the characteristic valence shell configuration of coinage metals?
In group 15 elements which element shows a fractional oxidation state?
Red hot iron absorbs \(SO_2\) giving the product.
Ozone when reacts with potassium iodide solution liberates a substance which turns starch paper blue. The liberated substance is:
Pure cold conc \(HNO_3\) makes iron passive, as the surface is covered with protective layer of
When the more electropositive metal displaces less electropositive metal from its salt solution, this process is called:
Which of the following is neutral refractories material?
The rate of a gaseous reaction is given by the expression \(k[A][B]\). If the volume of the reaction vessel is suddenly reduced to \( \frac{1}{4} \) of the initial volume, the reaction rate relative to original rate will be:
The standard reduction potential for \(Fe^{2+}/Fe\) and \(Sn^{2+}/Sn\) electrodes are -0.44 and -0.14 V respectively. For the cell reaction \(Fe^{2+} + Sn \rightarrow Fe + Sn^{2+}\), the standard emf is
Addition of arsenic to germanium makes the latter:
Semiconductors are derived from compounds of
\( CH_3C \equiv CCH_3 \xrightarrow{(i)\,X \; (ii)\,H_2O/Zn} CH_3CO - COCH_3 \)
In the above reaction \( X \) is:
The IUPAC name for the formula \[ CH_3 - C( CH_3 ) = C( H ) - COOH \] is
Which isomeric form of benzene hexachloride is used as insecticide?
Name of the compound given below is :
Which of the following pairs of compounds are enantiomers?
Which of the following represents the given mode of hybridisation \(sp^2 - sp^2 - sp - sp\) from left to right?
Number of $\pi$ electrons present in naphthalene is