List of top Questions asked in NEET (UG)- 2014

In acidic medium, H₂O₂ changes Cr₂O₇^2- to CrO₅ which has two (-O-O-) bonds. Oxidation state of Cr in CrO₅ is

Which of the following orders of ionic radii is correctly represented?

Which of the following salts will give highest pH in water ?

Which of the following will not be soluble in sodiumhydrogen carbonate?

For the reaction:
\(X_2O4(l) → 2XO_2(g)\)
△U = 2.1 k cal, △S = 20 cal K^–l at 300 K.
Hence △G is

In the following reaction, the product (A) is :

Using the Gibbs energy change, \(△G° = + 63.3\  kJ\), for the following reaction,
\(Ag_2CO_3 (g) ⇋ 2Ag+ (aq) + CO_3^{2–} (aq)\)
the \(K_{sp}\) of \(Ag_2CO_3 \)(s) in water at \(25°C\) is :
\((R = 8.314\ J K^{–1} mol^{–1})\)

Identify \(Z\) in the sequence of reactions:
\(CH_3CH_2CH=CH_2  \xrightarrow{HBr/H_2O_2}Y \xrightarrow{C_2H_5ONa}Z\)

In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 gm of sample neutralized 10 mL of 1 M H₂SO₄, The percentage of nitrogen in the soil is:

Which property of colloids isnot dependent on the charge on colloidal particles?

For a given exothermic reaction, K_p and K'_P are the equilibrium constants at temperatures T₁ and T₂, respectively. Assuming that heat of reaction is constant in temperature range between T₁ and T₂, it is readily observed that:

Which one of the following is an example of a thermosetting polymer?

Which one is most reactive towards Nucleophilic addition reaction?

Calculate the energy in joule corresponding to light of wavelength 45 nm:
(Planck’s constant h = 6.63 × 10^-34 Js; speed of light c = 3 × 10⁸ ms^-1)

Which of the following organic compounds has same hybridization as its combustion product CO2 ?

\(Be^{2+}\) is isoelectronic with which of the following ions?

Magnetic moment 2.83 BM is given by which of the following ions?
(At. nos. Ti = 22, Cr = 24, Mn = 25, Ni = 28)

The weight of silver (at wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O₂ at STP will be:

For the reversible reaction :
\(N_2(g) + 3H_2(g) ⇋ 2NH_3(g) + \text {Heat}\)
The equilibrium shifts in forward direction :

The pair of compounds that can exist together is:

Which of the following complexes is used to be as an anticancer agent?

Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is:

If a is the length of the side of a cube , the distance between the body centred atom and one corner atom in the cube will be

Which one of the following species has plane triangular shape?

Which of the following molecules has the maximum dipole moment?