Prac exam prep Flashcards
What catalyst + conditions is used for hydrogenation?
Nickle
What catalyst + condition is used for the hydration of alcohol?
Phosphoric acid 300*c
What catalyst is used for dehydration of alcohol?
Conc sulfuric acid
What catalyst is used for the oxidation of alcohols?
Acidified potassium dichormate
What is the enthalpy change equation?
q=mc∆T (NEGATIVE)
What are the conditions of alkane cracking?
Zeolite catalyst and 450*c
What catalyst is used for the esterification of alcohols?
Conc sulfuric acid
What is the flame test colour for Lithium?
Red
What is the flame test colour for Sodium?
Orange yellow
What is the flame test colour for potassium?
Lilac
What is the flame test colour for calcium?
Brick red
What is the flame test colour for strontium?
Crimson
What is the flame test colour for Barium?
Apple green
What are the 4 solubility trends for group 2 compounds?
All nitrates are soluble
All carbonates are insoluble
Hydroxides increase in solubility down the group
Sulphates decrease in solubility down the group
Wat is used as a test for halides?
Nitric acid followed by silver nitrate then aqueous ammonia
What are the 3 observations from the halide test?
Cl- White ppt that dissolves
Br- Cream ppt that partially dissolves
I- Yellow ppt that is insoluble
What is observed when CCl4 reacts with water?
an immiscible mixture is formed
layers are observed with ccl4 on top
What is observed when SiCl4 reacts with water?
White ppt of Si(OH)4
Misty fumes of HCl
What is observed when PbCl4 reacts with hot and cold water?
No reaction in cold
Sparingly soluble in hot- colourless solution with white solid
What is observed when lead and iodine react?
Canary yellow ppt
What is observed when NaCl and H2SO4 react?
HCl misty fumes
What is overserved when HBr and H2SO4 react?
Misty fumes of HBr
Yellow orange solution (Br) and Chocking gas (SO2)
What is observed when NaI and H2SO4 react?
HI misty fumes
Orange brown solution (I2) and rotten egg smell (H2S)
I2 grey solid
I2 purple gas
What is the OH+ ligand colour change for Cu 2+?
Blue to pale blue