Answer:
A. Non-metal
B. Six
C. 2
D.NA2O
E.Oxygen
Explanation:
Oxygen is the element in the second period (second horizontal row) and Group VI A of the periodic table. These properties apply to oxygen
<u>Answer:</u> The percent yield of the compound is 30.86 %.
<u>Explanation:</u>
To calculate the percentage yield of a compound, we use the equation:
Experimental yield of compound = 25 g
Theoretical yield of compound = 81 g
Putting values in above equation, we get:
Hence, the percent yield of the compound is 30.86 %.
Answer:
1M HCl: add 1mol/12M = 83 ml conc. HCl to 1L of water or 8.3ml to 100ml.
2M HCl: add 2mol/12M = 167 ml conc. HCl to 1L of water or 16.7ml to 100ml.
Answer:
The scientific name of the grasshopper is Caelifera.
Explanation:
hope this helps.
Answer:
The correct option is option E
Addition to the carbonyl by a nucleophile is followed by loss of the leaving group.
Explanation:
Substitution reaction that involves nucleophile and acyl group is called nucleophilic acyl substitution reaction.
Generally alcohol, amine or enolate group act as nuceophile. The nucleophile displaces the acyl group of acyl haide, anhydride or ester.
Mechanism of acyl substitution reaction
First step is the addition of nucleophile to the carbonyl carbon results in the formation of a tetrahedral derivatives.
Second step is the removal of leaving group
Hence, the correct option is option E
