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  1. Problems
  2. /NEST (NISER)

NEST (NISER) problems

74 problems for NEST (NISER) practice, in Physics, Chemistry, Mathematics and Biology, each with a worked solution. Try each one on paper first, then check your answer.

Other examsJEE MainJEE AdvancedNEETBoard ExamOlympiadSATAPA-LevelIBAEEE (Amrita)AMUEEEAP EAPCETBCECEBITSATCOMEDK UGETCUET UGGaokaoGUJCETIAT (IISER)International OlympiadJCECEJKCETKCETKEAMKIITEELPUNESTMET (Manipal)MHT-CETOJEEPCAP (Python Institute)PCEP (Python Institute)SRMJEEETS EAPCETUPESEATVITEEEWBJEE

Pick a subject to see its topics.

58 problems
Type:
1.
A gene of a bacterium has 1200 base pairs on its coding strand, from the start codon ATG to the… New
High School (11–12) · BiomoleculesNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
2.
A single strand of DNA reads 5′-ATGCGTAC-3′… New
High School (11–12) · BiomoleculesNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
3.
An enzyme reaction has an activation energy of 60 kJ/mol… New
High School (11–12) · BiomoleculesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
4.
A peptide has five residues. Count the possible sequences in three cases… New
High School (11–12) · BiomoleculesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
5.
Cysteine has three groups that ionise: the α-COOH group (pK = 1.96), the thiol group of the side… New
High School (11–12) · BiomoleculesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
6.
Histidine has three ionisable groups: the α-COOH group (pK = 1.82), the imidazole ring of the side… New
High School (11–12) · BiomoleculesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
7.
A sample of 8.10 g of starch is hydrolysed completely to glucose… New
High School (11–12) · BiomoleculesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
8.
A syrup contains 100 g of sucrose (342.30 g/mol) and is hydrolysed completely… New
High School (11–12) · BiomoleculesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
9.
D-galactose has the Fischer pattern R L L R for C-2 to C-5, where R means the -OH is on the right… New
High School (11–12) · BiomoleculesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
10.
A solution of D-glucose in water has stood for a day… New
High School (11–12) · BiomoleculesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
11.
A chemist has 18.5 g of 1-chlorobutane (92.5 g/mol) and wants an amine… New
High School (11–12) · AminesNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
12.
Methyl orange is made by diazotising sulphanilic acid, C₆H₇NO₃S (173 g/mol), and coupling the salt… New
High School (11–12) · AminesNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
13.
Iodobenzene is made from nitrobenzene in three steps… New
High School (11–12) · AminesNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
14.
Aniline is nitrated with a mixture of concentrated nitric and sulphuric acids… New
High School (11–12) · AminesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
15.
A chemist makes a mixture that holds 0.0100 mol of each of the eight amines of the formula C₄H₁₁N… New
High School (11–12) · AminesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
16.
Two solutions are made in water at 298 K, each with a concentration of 0.0500 mol/L… New
High School (11–12) · AminesJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
17.
An analyst finds that a saturated, open-chain primary amine contains 23.7 % nitrogen by mass… New
High School (11–12) · AminesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
18.
A chemist makes butan-1-amine, C₄H₉NH₂, by the Gabriel synthesis… New
High School (11–12) · AminesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
19.
Many amines have the formula C₈H₁₁N and contain one benzene ring… New
High School (11–12) · AminesBoard ExamA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
20.
Four acids are given: A, 4-chlorobutanoic acid, B, 2-chlorobutanoic acid, C, butanoic acid, and D… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
21.
Dichloroethanoic acid has pKa = 1.29. A solution has a concentration of 0.10 mol/L… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
22.
1.20 g of ethanoic acid (60.05 g/mol) is dissolved in 50.0 g of benzene… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsNEETA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
23.
Four compounds are each treated first with dilute and then with concentrated sodium hydroxide… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
24.
Six compounds are given: ethanal, propanal, benzaldehyde, pentan-2-one, pentan-3-one and butan-2-ol… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
25.
4.40 g of ethanal (44.05 g/mol) is warmed with an excess of methanol (32.04 g/mol) and a little dry… New
High School (11–12) · Aldehydes, Ketones and Carboxylic AcidsJEE MainA-LevelIB+22A-LevelIBIAT (IISER)+1StemPy LabStemPy Lab
Hard
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