List of top Questions asked in NEET (UG)- 2019

Which is the correct thermal stability order for\( H_2E\) (E=O, S, Se, Te and Po)? 

The mixture that forma maximum boiling azeotrope is :

For a p-type semiconductor, which of the following statements is true?

The method used to remove temporary hardness of water is : (1) (2) (3) (4)

The non-essential amino acid among the following is:

Which will make basic buffer?

For the cell reaction
\(2Fe^{3+}+2I^{-}_{(aq)}\rightarrow2Fe^{2+}+I_2{(aq)}\)
\(E^{\ominus}_{cell}=0.24\ V \ at \ 298 k.\)The standard Gibbs energy \((\Delta_rG^{\ominus})\) of the cell reaction is:
[Given that Faraday constant \( F=96500 \ C\ mol^{-1}]\)  

Pick the wrong answer in the context with rainbow.

The biodegradable polymer is:

A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when:

The most suitable reagent for the following conversion, is:

The correct structure of tribromooctaoxide is:

a-particle consists of:

In which case change in entropy is negative? (1)(2) (3 (4)

\(pH\) of a saturated solution of \(Ca(OH)_2\) is \(9\). The solubility product \((K_{sp})\) of \( Ca(OH)_2\) is: 

The correct order of the basic strength of methyl substituted amines in aqueous solution is:

The structure of intermediate A in the following reaction, is;

Conjugate base for Brönsted acids \(H_2O\) and \( HF\) are

Identify the incorrect statement related to PCI from the following:

Match the Xenon compounds in Column-I with its structure in Column II and assign the correct code:

Column I		Column II
A	\(XeF_4\)	I	pyramidall
B	\(XeFe_6 \)	II	square planar
C	\(XeOF_4  \)	III	distorted octahedral
D	\(XeO_3\)	IV	square pyramidal

Code:

In the circuits shown below, the readings of the voltmeters and the ammeters will be:

Six similar bulbs are connected as shown in the figure with a DC source of emf E, and zero internal resistance.
The ratio of power consumption by the bulbs when (i) all are glowing and (ii) in the situation when two from section A and one from section B are glowing, will be:

For the chemical reaction \(N_2(g)+ 3H_2(g)= 2NH_3(g)\) the correct option is :

Which of the following species is not stable ?

An electron is accelerated through a potential difference of \(10,000 V\). Its de Broglie wavelength is, (nearly): \((m_e=9\times10^{-31} kg) \)