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Chemistry · PYQ NEET UG 2019(2)
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43 questions
Chemistry · PYQ NEET UG 2019(2)
Crude sodium chloride obtained by crystallization of brine solution does not contain
Read answer →Chemistry · PYQ NEET UG 2019(2)
Identify the INCORRECT statement.
Read answer →Chemistry · PYQ NEET UG 2019(2)
An ideal gas expands isothermally from \( 10^{-3} \) \( \mathrm{m^3} \) to \( 10^{-2} \) \( \mathrm{m^3} \) at \( 300 \) \( \mathrm{K} \) against a constant pressure of \( 10^5 \) \(\mathrm{Nm^{-2}}\. The work done on the gas is
Read answer →Chemistry · PYQ NEET UG 2019(2)
Match the catalyst with the process.\nCatalyst: i. \( V_2O_5 \), ii. \( TiCl_4 + Al(CH_3)_3 \), iii. \( PdCl_2 \), iv. Nickel complexes.\nProcess: a. The oxidation of ethyne to ethanal, b. Polymerization of alkynes, c. Oxidation of \( SO_2 \) in the manufacture of \( H_2SO_4 \), d. Polymerization of ethylene.\nWhich of the following is the CORRECT option?
Read answer →Chemistry · PYQ NEET UG 2019(2)
Identify the CORRECT formula of 'oleum' from the following.
Read answer →Chemistry · PYQ NEET UG 2019(2)
The major products C and D formed in the following reaction respectively are \( \text{H}_3\text{C}-\text{CH}_2-\text{CH}_2-\text{O}-\text{C}(\text{CH}_3)_3 \xrightarrow[\Delta]{\text{excess HI}} \text{C} + \text{D} \)
Read answer →Chemistry · PYQ NEET UG 2019(2)
Which of the following is the correct order of dipole moment?
Read answer →Chemistry · PYQ NEET UG 2019(2)
A compound 'X' upon reaction with \( \mathrm{H_2O} \) produces a colourless gas 'Y' with rotten fish smell. Gas 'Y' is absorbed in a solution of \( \mathrm{CuSO_4} \) to give \( \mathrm{Cu_3P_2} \) as one of the products. Predict the compound 'X'.
Read answer →Chemistry · PYQ NEET UG 2019(2)
Aluminium chloride in acidified aqueous solution forms a complex 'A', in which hybridisation state of Al is 'B'. What are 'A' and 'B', respectively?
Read answer →Chemistry · PYQ NEET UG 2019(2)
Which of the following CANNOT act both as Bronsted acid and as Bronsted base?
Read answer →Chemistry · PYQ NEET UG 2019(2)
Match the oxide given in column A with its property given in column B. \n Column-A \n i. \( \mathrm{Na_2O} \) \n ii. \( \mathrm{Al_2O_3} \) \n iii. \( \mathrm{N_2O} \) \n iv. \( \mathrm{Cl_2O_7} \) \n Column-B \n a. Neutral \n b. Basic \n c. Acidic \n d. Amphoteric \n Which of the following is the CORRECT match?
Read answer →Chemistry · PYQ NEET UG 2019(2)
The alkane that gives only one mono-chloro product on chlorination with \( \mathrm{Cl_2} \) in presence of diffused sunlight is
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The oxidation state of \( \text{Cr} \) in \( \text{CrO}_6 \) is
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The artificial sweetener stable at cooking temperature and does NOT provide calories is
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The liquified gas that is used in dry cleaning along with a suitable detergent is
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The Crystal Field Stabilization Energy (CFSE) for \( [\mathrm{CoCl_6}]^{4-} \) is \( 18000 \) \( \mathrm{cm^{-1}} \). The CFSE for \( [\mathrm{CoCl_4}]^{2-} \) will be
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Following limiting molar conductivities are given as, \( \Lambda^\circ_m(H_2SO_4) = x \text{ S cm}^2 \text{mol}^{-1} \), \( \Lambda^\circ_m(K_2SO_4) = y \text{ S cm}^2 \text{mol}^{-1} \), \( \Lambda^\circ_m(CH_3COOK) = z \text{ S cm}^2 \text{mol}^{-1} \). \( \Lambda^\circ_m \) (in \( \text{S cm}^2 \text{mol}^{-1} \)) for \( CH_3COOH \) will be
Read answer →Chemistry · PYQ NEET UG 2019(2)
