Question

1)Each element has its own Atomic Number. If the number of neutrons is changed the atomic number and identity of the element does not change

A) True B) False

2) What type of chemical bond results when atoms complete their valence shells by electron transfer? This results in oppositely charged Cations and Anions that stick together

A) vanderwalls attractions B) covalent bonds C) ionic bonds D) all of these

3) Choose the correct statement about the STRONGEST type of chemical bonding.

A) ionic bonds, electrons are shared

B) ionic bonds, electrons are lost   

C) covalent bonds, electron pairs are shared between atoms

D) covalent bonds, electrons are transferred to complete valence

4) What type of chemical bond results when atoms complete their valence shells by electron transfer? This results in oppositely charged Cations and Anions that stick together

A) vanderwalls attractions B) covalent bonds C) ionic bonds D) all of these

5) Which type of chemical bond is the weakest

            A) vanderwalls attractions     B) covalent bonds     C) ionic bonds    D) all of these

6) Which are covalent bonds

A) Glycosidic bonds   

B) Peptide bonds

D) 1-4 Beta linkages

D) All of these

E) None of these

The molecular masses of Glucose and Fructose are 180 daltons and 342 daltons respectively. Answer the following 2 questions.

7) A mol of Glucose and a mol of Fructose are the same in terms of

            A) Mass in Daltons    B) Mass in Grams   D) Number of molecules

8) A mol of Glucose and a mol of Fructose are different in terms of

            A) Mass in Daltons    B) Mass in Grams   D) Number of molecules

Answer 1

1. (a) true.

2.(c) ionic bonds.

3.(c) covalent bonds, electron pairs are shared between atoms.

4.(c) ionii bonds.

5.(a) Vander walls attractions.

6.(d) all of these.

7. A mole of glucose and mole of Fructose are the same in terms of

Mass in Dalton, mass in grams and number of molecules. Because both molecules have the same molecular formula.

8. In the given options there are no difference in terms of a mole of glucose and mole of Fructose.

I think some other option is missing In question 7 and 8.