Q16. Complete the following reaction sequence. Hi CH3-C-CH₂ (i) CH,MgBr H₁₂O Na metal CH,- Br (A) (B) (C) Ether

CH21/23) [Review Topics] [References] Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol or enone below. O . OH O You do not have to consider stereochemistry. Draw the enolate ion in its carbanion form. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu. ChemDoodle [F Previous Nex

How many chiral centers are in the molecule shown below? C 3 7 05 O2 O4 06 O1

Draw the complete electron pushing mechanism of the reaction shown below. Make sure to show all electron flow and resulting charges in the intermediates to receive full credit. Take pictures and insert it here. Br CH3OH 8 + HBr Paragraph ✓ B I U✓ A 川く == هه кл

1. Four solutions are provided: AgNO3, Pb(NO3)2. HNO3 (strong acid) and Nal Mixing which of the above solutions will result in formation of precipitation?

Bnmm

Draw the major organic product(s) of the following reactions including stereochemistry when it is appropriate. CEC-CH₂ H₂O/H2SO4/HgSO4 • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If no reaction occurs, draw the organic starting material. • Separate multiple products using the + sign from the drop-down menu.

102. Four capacitors C1-1uF, C2=2uF, C3=3uF and C4-4uF are connected as given in figure. The potential of junction O is A. 16.5 V B. 18 V C. 15.5 V D. 18.5 V 10 V 5V C₁ # H C3+ CA 20 V 30 V

Max E(U)= E(rc)-.5A o² (rc) y* E(rp)-r Ασ, What if A4, then y*= E(r) = σ(rd) = w

The substance that speeds up a chemical reaction without being consumed itself is called: A) Catalyst B) Reactant C) Product D) Inhibitor??