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)? 

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:

Which will make basic buffer?

Which of the following series of transitions in the spectrum of hydrogen atom falls in visible region?

Enzymes that utilize ATP in phosphate transfer require an alkaline earth metal (M) as the cofactor. M is:

Which of the following diatomic molecular species has only bonds according to Molecular Orbital Theory?

4d, 5p, 5f and 6p orbitals are arranged in the order of decreasing energy. The correct option is:

Which of the following reactions are disproportionation reaction?
a)\(2Cu^{+}\rightarrow Cu^{2+}+Cu^{0}\)
\(b)3MnO_4^{2-}+4H^{+} \rightarrow2MnO_4^{-}+MnO_2+2H_2O\)
\(c)2KMnO_4\frac{\Delta}{\rightarrow}K_2MnO_4+MnO_2+O_2\)
\(d)2MnO_4^{-}+3Mn^{2+}+2H_2O \rightarrow 5MnO_2+4H^\oplus\)
Select the correct option from the following:

Among the following, the one that is not a green house gas is

If the rate constant for a first order reaction is k the time (t) required for the completion of 99% of the reaction is given by:

For an ideal solution, the correct option is:

For a cell involving one electron \(E^\ominus cell=0.59V\) at 298 K, the equilibrium constant for the cell reaction is: [Given that \(\frac{ 2.303 RT }{F}\) \(=0.059 V\) at\( T 298 K \)] 

Use of an artificial kidney during hemodialysis may result in:
(a) Nitrogenous waste build-up in the body (
b) Non-elimination of excess potassium ions 
(c) Reduced absorption of calcium ions from gastro-intestinal tract 
(d) Reduced RBC production 
Which of the following options is the most appropriate?

Which of the following can be used as a biocontrol agent in the treatment of plant disease?:

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

Select the correct option

In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

Which of the following statements is incorrect?

DNA precipitation out of a mixture of biomolecules can be achieved by treatment with:

A gene locus has two alleles A, a. If the frequency of dominant allele A is 0.4, then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?

Match the following hormones with the respective disease:

LIST I		LIST II
A	Insulin	i	Addison's disease
B	Thyroxin	ii	Diabetes insipidus
C	Corticoids	iii	Acromegaly
D	Growth Hormone	iv	Goitre
		v	Diabetes mellitus

Select the correct option.

The concept of "Omnis cellula-e cellula " regarding cell division was first proposed by:

Which of the statements given below is not true about formation of Annual Rings in trees?

Conversion of glucose to glucose-6-phosphate, the first irreversible reaction of glycolysis, is catalyzed by:

Match the following organisms with the products they produce:

LIST I		LIST II
A	Lactobacillus	i	Cheese
B	Saccharomyces	ii	Curd cerevisiae
C	Aspergillus niger	iii	Citric Acid
D	Acetobacter aceti	iv	Bread
		v	Acetic Acid

Select the correct option