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Explain why aniline does not undergo Friedel-Crafts reactions.
you need need 8moles of Na2Cr2O7 How much does this weigh
he serotonin reuptake protein transports the neurotransmitter from outside neurons into neurons. This happens against its concentration gradient, meaning that serotonin is pumped from an area of relatively low concentration to high concentration. The serotonin reuptake protein would therefore be a/an:
-ion channel.
-Carrier protein.
-Receptor.
-Enzyme.
-None of these options.
1. Draw the structures for the following molecules that meet these descriptions.
a) C2H6O; one singlet
b) C3H7Cl; one doublet and one septet
Draw line structures and name the reactants involved in the reaction using IUPAC. ii) Identify the reaction type.
a. 2-bromopentane
b) propanoic acid
c) ethyl butanoate
find the expression of universal gas constant R in the SI system in terms of given properties of oxygen gas
A solution containing 0.100 mol per dm cube of tetraoxosulphate (vi) acid, B is a Solution of an impure sodium hydroxide containing 10.0gram per dm cube.if 25cm cube portion of solution B required average of 24.10cm cube for complete neutralization using methane orange as an indicator, calculate :(a) concentration of B in Mol per DM cube, (b) mass concentration of pure B in grammar per DM cube (c) mass of impurity in gram per dm^3, (d) percentage impurity and purity of sodium hydroxide.
Non-covalent bond between GLU and ARG amino acid residues was discovered within a secondary structural domain (alpha-helix or beta-pleated sheet). Select from the list all possible types of non-covalent bonding between these amino acid residues:
A.Electrostatic bond
B.Hydrophobic bond
C.Hydrogen bond
Non-covalent bond between ASP and LYS amino acid residues was discovered between two peptide chains (quaternary structure). Select from the list all possible types of non-covalent bonding between these amino acid residues:
A.Electrostatic bond
B.Hydrogen bond
C.Hydrophobic bond
#339914 on Dec 2023