Staggered Conformation

Q.

In a sample of calcium phosphate , Ca_3(PO_{4)}, 0.432 moles of phosphorous is present, what is amount of calcium phosphate is present in the sample if sample is 100% pure

Q. 25. Explanation of Fischer projection

Q. 48. Number of g of in 32.2g na2so4.10h2o is

Q.

In ethane and cyclohexane which one of the following pairs of conformations are more stable

1. Eclipsed and chair conformations

2. Staggered and chair conformations

3. Staggered and boat conformations

4. Eclipsed and boat conformations

Q. calculate the number of electrons in 2 gram ethane molecule?

Q. 8. Explain dipole moment with direction in cis n2f2

Q.

What would be the increasing order of stability of the following alkenes ?

1. (i) < (ii) < (iii)= (iv) < (v) < (vi)

2. (ii) < (ii) < iv < (iii) < (v) < (vi)

3. (i) < (ii) < (iii) < (iv) < (v) < (vi)

4. (i) < (ii) < (iv) < (iii) <(vi) <( v)

Q. How to convert sawhorse to Fisher projection

Q. Why in FeO and FeO3 fe mass of Fe is taken in parts

Q. Which of the following represents the staggered conformation with dihedral angle $\varphi ={60}^{\circ }$ ?

1. 
2. 
3. 
4. 

Q. In the given conformation, $C_2$ is rotated about $C_2-C_3$ bond anticlockwise by an angle of ${120}^{\circ }$, then the conformation obtained is:

1. Fully eclipsed conformation
2. Partially eclipsed conformation
3. Gauche conformation
4. Staggered conformation

Q. 90 How to measure degree of unsaturation for any compound. As it is 0 for alkane and 1 for alkene ? Explain

Q. In the given three conformational isomers which of the following has minimum torsional strain and minimum van der Waals strain.

1. 
2. 
3. 
4. All of the above.

Q. what is intensity in simple words

Q. how to find maximum hyper conjugation effect when attached with unsaturated atom

Q. $C_2$ is rotated anti- clockwise ${120}^{\circ }$ about $C_2-C_3$ bond, the resulting conformer is

1. Partially eclipsed
2. Eclipsed
3. Gauche
4. Staggered

Q. Which has the lowest anion to cation size ratio??
a.)LiF b.)NaF c.)CsI d.)CsF

Q. is the formula of limiting reagent that which will have less value of moles upon stochiometric coefficient valid for all sums of limiting reagent?