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Chemistry · PYQ NEET UG 2019(1)
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45 questions
Chemistry · PYQ NEET UG 2019(1)
Which mixture of the solutions will lead to the formation of negatively charged colloidal [\( \text{AgI} \)]\( \text{I}^- \) sol?
Read answer →Chemistry · PYQ NEET UG 2019(1)
The non-essential amino acid among the following is ______.
Read answer →Chemistry · PYQ NEET UG 2019(1)
Which of the following species is NOT stable?
Read answer →Chemistry · PYQ NEET UG 2019(1)
The method used to remove temporary hardness of water is ____.
Read answer →Chemistry · PYQ NEET UG 2019(1)
Identify the INCORRECT statement related to \( \text{PCl}_5 \) from the following.
Read answer →Chemistry · PYQ NEET UG 2019(1)
The mixture that forms maximum boiling azeotrope is ______.
Read answer →Chemistry · PYQ NEET UG 2019(1)
For the second period elements the CORRECT increasing order of first ionization enthalpy is _________.
Read answer →Chemistry · PYQ NEET UG 2019(1)
Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is ______.
Read answer →Chemistry · PYQ NEET UG 2019(1)
The number of sigma (\( \sigma \)) and pi (\( \pi \)) bonds in pent-2-en-4-yne is
Read answer →Chemistry · PYQ NEET UG 2019(1)
For the cell reaction, \( 2\text{Fe}^{3+}_{(\text{aq})} + 2\text{I}^-_{(\text{aq})} \longrightarrow 2\text{Fe}^{2+}_{(\text{aq})} + \text{I}_{2(\text{aq})} \) \( E^\circ_{\text{cell}} = 0.24\text{ V} \) at \( 298\text{ K} \). The standard Gibbs energy (\( \Delta_r G^\circ \)) of the cell reaction is ______.\n[Given that Faraday constant \( \text{F} = 96500\text{ C mol}^{-1} \)]
Read answer →Chemistry · PYQ NEET UG 2019(1)
For an ideal solution, the CORRECT option is
Read answer →Chemistry · PYQ NEET UG 2019(1)
ट्राइब्रोमोऑक्टाऑक्साइड की सही संरचना ______ है।
Read answer →Chemistry · PYQ NEET UG 2019(1)
For a cell involving one electron \( E_{\text{cell}}^\circ = 0.59\text{ V} \) at \( 298\text{ K} \), the equilibrium constant for the cell reaction is _________. [Given that \( \frac{2.303 RT}{F} = 0.059\text{ V} \) at \( T = 298\text{ K} \)]
Read answer →Chemistry · PYQ NEET UG 2019(1)
4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The CORRECT option is ______.
Read answer →Chemistry · PYQ NEET UG 2019(1)
Under isothermal condition, a gas at \( 300\text{ K} \) expands from \( 0.1\text{ L} \) to \( 0.25\text{ L} \) against a constant external pressure of \( 2\text{ bar} \). The work done by the gas is _________. (Given that \( 1\text{ L bar} = 100\text{ J} \))
Read answer →Chemistry · PYQ NEET UG 2019(1)
Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?
Read answer →Chemistry · PYQ NEET UG 2019(1)
A gas at \( 350\text{ K} \) and \( 15\text{ bar} \) has molar volume \( 20 \) percent smaller than that for an ideal gas under the same conditions. The CORRECT option about the gas and its compressibility factor (\( \text{Z} \)) is _________
Read answer →Chemistry · PYQ NEET UG 2019(1)
Which of the following is an amphoteric hydroxide?
Read answer →Chemistry · PYQ NEET UG 2019(1)
For the chemical reaction, \( \text{N}_{2(\text{g})} + 3\text{H}_{2(\text{g})} \rightleftharpoons 2\text{NH}_{3(\text{g})} \)\nthe CORRECT option is
Read answer →Chemistry · PYQ NEET UG 2019(1)
If the rate constant for a first order reaction is \( \text{k} \), the time (\( \text{t} \)) required for the completion of \( 99\% \) of the reaction is given by _________.
Read answer →Chemistry · PYQ NEET UG 2019(1)
A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of octahedral voids. The formula of the compound is _________.
Read answer →Chemistry · PYQ NEET UG 2019(1)
The number of moles of hydrogen molecules required to produce \( 20 \) moles of ammonia through Haber's process is _________.
Read answer →Chemistry · PYQ NEET UG 2019(1)
