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Chemistry · PYQ NEET UG 2024
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Chemistry · PYQ NEET UG 2024
The \( E^\circ \) value for the \( \text{Mn}^{3+}/\text{Mn}^{2+} \) couple is much more positive than that of \( \text{Cr}^{3+}/\text{Cr}^{2+} \) or \( \text{Fe}^{3+}/\text{Fe}^{2+} \) due to which of the following?
Read answer →Chemistry · PYQ NEET UG 2024
अंतरणुक हाइड्रोजन आबंधन किसमें उपस्थित है?
Read answer →Chemistry · PYQ NEET UG 2024
The energy of an electron in the ground state (\( n = 1 \)) for \( \text{He}^+ \) ion is \( -x\text{ J} \), then that for an electron in \( n = 2 \) state for \( \text{Be}^{3+} \) ion in J is :
Read answer →Chemistry · PYQ NEET UG 2024
आरहेनियस समीकरण के अनुसार \( \ln k \) बनाम \( \frac{1}{T} \) का कौन सा आरेख सही है?
Read answer →Chemistry · PYQ NEET UG 2024
Which reaction is NOT a redox reaction?
Read answer →Chemistry · PYQ NEET UG 2024
The highest number of helium atoms is in
Read answer →Chemistry · PYQ NEET UG 2024
Match List I with List II. Choose the correct answer from the options given below:
Read answer →Chemistry · PYQ NEET UG 2024
वह यौगिक जो सबसे तीव्र दर से \( \text{S}_\text{N}1 \) अभिक्रिया प्रदर्शित करेगा, है:
Read answer →Chemistry · PYQ NEET UG 2024
Mass in grams of copper deposited by passing \( 9.6487 \text{ A} \) current through a voltmeter containing copper sulphate solution for \( 100 \text{ seconds} \) is: (Given: Molar mass of \( \text{Cu} : 63 \text{ g mol}^{-1} \), \( 1\text{F} = 96487 \text{ C} \))
Read answer →Chemistry · PYQ NEET UG 2024
The pair of lanthanoid ions which are diamagnetic is
Read answer →Chemistry · PYQ NEET UG 2024
The reagents with which glucose does not react to give the corresponding tests/products are: A. Tollen's reagent B. Schiff's reagent C. HCN D. \( \text{NH}_2\text{OH} \) E. \( \text{NaHSO}_3 \) Choose the correct options from the given below:
Read answer →Chemistry · PYQ NEET UG 2024
For the given reaction in the diagram, identify 'P' (major product):
Read answer →Chemistry · PYQ NEET UG 2024
A compound with a molecular formula of \( C_6H_{14} \) has two tertiary carbons. Its IUPAC name is:
Read answer →Chemistry · PYQ NEET UG 2024
Consider the following reaction in a sealed vessel at equilibrium with concentrations of \( N_2 = 3.0 \times 10^{-3} \) M, \( O_2 = 4.2 \times 10^{-3} \) M and \( NO = 2.8 \times 10^{-3} \) M. \( 2\text{NO}_{(g)} \rightleftharpoons \text{N}_{2(g)} + \text{O}_{2(g)} \). If 0.1 mol L\( ^{-1} \) of \( \text{NO}_{(g)} \) is taken in a closed vessel, what will be degree of dissociation (\( \alpha \)) of NO at equilibrium?
Read answer →Chemistry · PYQ NEET UG 2024
The plot of osmotic pressure (\( \Pi \)) vs concentration (\( \text{mol L}^{-1} \)) for a solution gives a straight line with slope \( 25.73 \text{ L bar mol}^{-1} \). The temperature at which the osmotic pressure measurement is done is:\n(Use \( R = 0.083 \text{ L bar mol}^{-1}\text{ K}^{-1} \))
Read answer →Chemistry · PYQ NEET UG 2024
वह यौगिक जो सबसे तीव्र दर से \( \text{S}_\text{N}1 \) अभिक्रिया देगा, है:
Read answer →Chemistry · PYQ NEET UG 2024
Which one of the following alcohols reacts instantaneously with Lucas reagent?
Read answer →Chemistry · PYQ NEET UG 2024
The work done during reversible isothermal expansion of one mole of hydrogen gas at \( 25^\circ\text{C} \) from pressure of \( 20 \text{ atmosphere} \) to \( 10 \text{ atmosphere} \) is:\n(Given \( R = 2.0 \text{ cal K}^{-1}\text{ mol}^{-1} \))
Read answer →Chemistry · PYQ NEET UG 2024
निम्नलिखित में से सबसे स्थिर कार्बधनायन (carbocation) कौन सा है?
Read answer →Chemistry · PYQ NEET UG 2024
In which of the following equilibria, \( K_p \) and \( K_c \) are NOT equal?
Read answer →Chemistry · PYQ NEET UG 2024
Match List I with List II. List I (Quantum Number) A. \( m_l \) B. \( m_s \) C. \( l \) D. \( n \) List II (Information provided) I. shape of orbital II. size of orbital III. orientation of orbital IV. orientation of spin of electron Choose the correct answer from the options given below:
Read answer →Chemistry · PYQ NEET UG 2024
निम्नलिखित अभिक्रिया अनुक्रम में बनने वाले मुख्य उत्पाद A और B हैं:
Read answer →Chemistry · PYQ NEET UG 2024
