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Chemistry · PYQ NEET UG 2020
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45 questions
Chemistry · PYQ NEET UG 2020
Identify the CORRECT statement from the following:
Read answer →Chemistry · PYQ NEET UG 2020
HI के साथ विदलन पर ऐनिसोल देता है _______।
Read answer →Chemistry · PYQ NEET UG 2020
An increase in the concentration of the reactants of a reaction leads to change in ________.
Read answer →Chemistry · PYQ NEET UG 2020
Which of the following is a basic amino acid?
Read answer →Chemistry · PYQ NEET UG 2020
What is the change in oxidation number of carbon in the following reaction? \( \text{CH}_{4(\text{g})} + 4\text{Cl}_{2(\text{g})} \longrightarrow \text{CCl}_{4(\text{l})} + 4\text{HCl}_{(\text{g})} \)
Read answer →Chemistry · PYQ NEET UG 2020
Which of the following is the CORRECT order of increasing field strength of ligands to form coordination compounds?
Read answer →Chemistry · PYQ NEET UG 2020
Identify the incorrect match. Name | IUPAC Official Name (i) Unnilunium | (a) Mendelevium (ii) Unniltrium | (b) Lawrencium (iii) Unnilhexium | (c) Seaborgium (iv) Unununium | (d) Darmstadtium
Read answer →Chemistry · PYQ NEET UG 2020
Reaction between acetone and methylmagnesium chloride followed by hydrolysis will give _______.
Read answer →Chemistry · PYQ NEET UG 2020
Reaction between benzaldehyde and acetophenone in presence of dilute \( \text{NaOH} \) is known as _______.
Read answer →Chemistry · PYQ NEET UG 2020
Which of the following set of molecules will have zero dipole moment?
Read answer →Chemistry · PYQ NEET UG 2020
एक एल्कीन ओजोनीकरण पर एक उत्पाद के रूप में मेथेनल देता है। इसकी संरचना है -------
Read answer →Chemistry · PYQ NEET UG 2020
Identify a molecule which does NOT exist.
Read answer →Chemistry · PYQ NEET UG 2020
HCl was passed through a solution of \( \mathrm{CaCl_2} \), \( \mathrm{MgCl_2} \) and \( \mathrm{NaCl} \). Which of the following compound(s) crystallise(s)?
Read answer →Chemistry · PYQ NEET UG 2020
The CORRECT option for free expansion of an ideal gas under adiabatic condition is _______.
Read answer →Chemistry · PYQ NEET UG 2020
Identify the INCORRECT statement.
Read answer →Chemistry · PYQ NEET UG 2020
The number of protons, neutrons and electrons in \( { }_{71}^{175}\mathrm{Lu} \), respectively, are _______.
Read answer →Chemistry · PYQ NEET UG 2020
The freezing point depression constant (\( K_f \)) of benzene is \( 5.12\text{ K kg mol}^{-1} \). The freezing point depression for the solution of molality \( 0.078\text{ m} \) containing a non-electrolyte solute in benzene is (rounded off upto two decimal places):
Read answer →Chemistry · PYQ NEET UG 2020
A tertiary butyl carbocation is more stable than a secondary butyl carbocation because of which of the following?
Read answer →Chemistry · PYQ NEET UG 2020
Which of the following oxoacid of sulphur has \( - \text{O} - \text{O} - \) linkage?
Read answer →Chemistry · PYQ NEET UG 2020
अभिक्रियाओं के निम्नलिखित अनुक्रम में यौगिक X को पहचानिए: \( \mathrm{Toluene \xrightarrow{Cl_2/h\nu} X \xrightarrow{H_2O, 373K} Benzaldehyde} \)
Read answer →Chemistry · PYQ NEET UG 2020
The number of Faradays (F) required to produced \( 20\text{ g} \) of calcium from molten \( \mathrm{CaCl_2} \) (Atomic mass of \( \mathrm{Ca} = 40\text{ g mol}^{-1} \)) is _______.
Read answer →Chemistry · PYQ NEET UG 2020
Paper chromatography is an example of _______.
Read answer →Chemistry · PYQ NEET UG 2020
