List of top Questions asked in MET

The ratio of de-Broglie wavelengths for electrons accelerated through \(200\,V\) and \(50\,V\) is:
When \(MnO_2\) is heated with \(PbO_2\) and conc. \(HNO_3\), pink colour is obtained due to formation of:
A new carbon-carbon bond formation is possible in:
I. Cannizzaro reaction II. Friedel-Crafts reaction III. Clemmensen reduction IV. Reimer-Tiemann reaction
Which of the following compound is formed during Perkin's reaction?
Match List I with List II and choose the correct answer from the codes given below \[ \begin{array}{c c c} List I & & List II A.\; NaNO_3 & & (i)\; Baking\; soda B.\; Na(NH_4)HPO_4 & & (ii)\; Chile\; saltpetre C.\; NaHCO_3 & & (iii)\; Microcosmic\; salt D.\; Na_2CO_3 \cdot 10H_2O & & (iv)\; Washing\; soda \end{array} \] Codes: {c c c c c} & A & B & C & D
Malachite decomposed to give \(A + CO_2 + H_2O\) and compound \(A\) on reduction with carbon gives \(CO + B\). Here, \(A\) and \(B\) are
In the given reaction sequence involving \(CHCl_3\), the end product \(C\) is used as:
Which statement is false for white phosphorus (\(P_4\))?
Match List I (species) with List II (hybridisation) and select the correct code given below \[ \begin{array}{c c c} List I & & List II A.\; XeF_4 & & (i)\; dsp^2 B.\; H_2O & & (ii)\; sp^3 C.\; PCl_5 & & (iii)\; sp^3d^2 D.\; [Pt(NH_3)_4]^{2+} & & (iv)\; sp^3d \end{array} \] Codes: {c c c c c} & A & B & C & D
Which of the following is an organometallic compound?
If in the reaction \(N_2O_4 \rightleftharpoons 2NO_2\), \( \alpha \) is the degree of dissociation of \(N_2O_4\), then total number of moles at equilibrium is:
Natural rubber is a polymer of isoprene. During polymerisation:
The rate of a reaction doubles when the initial concentration of the reactant is made fourfold. If the initial concentration is made 400 fold, then the rate will become:
Which of the following complexes is an outer orbital complex?
Which compound is present in diesel?
In the Cannizzaro reaction, the slowest step is:
Which is true for a cyclic process?
Certain electric current for half an hour collects \(11.2\,L\) of hydrogen at NTP. Same current passed for one hour deposits how much silver?
In qualitative analysis, \(NH_4Cl\) is added before \(NH_4OH\):
Which of the following is not a basic amino acid?
What is the current through the circuit and the potential difference across the diode shown in the figure. The drift current for the diode is \(30\,\mu A\).
A man who wears glasses of power \(3D\) must hold a newspaper at least \(25\,cm\) away to see clearly. How far away would the newspaper have to be if he took off the glasses and still wanted clear vision?
The critical angle for glass-water interface (if \( \mu_g = \frac{3}{2}, \mu_w = \frac{4}{3} \)) is:
When a dielectric slab is introduced between the plates of a capacitor connected to a battery, then:
The force per unit length between two parallel current carrying straight conductors separated by \(2d\) is given by the formula: