TMA2 CHM 303: Inorganic chemistry
Question 1. Group IVA element show many of the characteristics of non mental but as we move down the group?
A. Covenant character increase
B. Polarizations effect degrees
C. Electronegativity increase
D. Metallic character increase
Answer is D. Metallic character increase
Question 2. all hydrogen of group 1A elements are_____?
A. Soluble in water
B. A insoluble water
C. Amphoteric
D. Unreactive
Answer is A. Soluble in water
Question 3. Boron chemistry is similar to that silicon___?
A. boron like silicon is a strong reducing agent
B. Boron like silicon is a strong oxidizing agent
C. Boron like silicon has a great affinity for fluorine
D. Boron like silicon has a great affinity for oxygen
Answers is D. Boron like silicon has a great affinity for oxygen
Question 4. There is a gradual decrease in atomic radius across a row of transition element because of____ ?
A. As the electron in the d orbital sheld their ns election and also themselves from the nuclear charge incompletely effective nuclear charge felt by them increase and has a contraction in size occur
B.As the electron in the d orbital sheld their ns election and also themselves from the nuclear charge incompletely effective nuclear charge felt by them increase and has a contraction in size occur
C. Non of the above
D. All of the above
Answer C. Non of the above
Question 5. The group 1A element are highly electropositive because___?
A. They ionized by election loss
B. Their S election is very shielded by the in electron
C. The outer electron have high ionization energy
D. They ionized by sharing electron
Answer is B. Their S election is very shielded by the in electron
Question 6. all the element of group 1A react with oxygen to give______?
A. Basic oxide
B. Ionic oxide
C. Ionic oxide and peroxide
D. Basic oxide and peroxides.
Answer is C Ionic oxide and peroxide
Question 7. Group IIIB element exhibit covalent character because of_____?
A. the energy needed to form the 3-valent ion is very large
B. Group IIIB element cannot donate or accept election
C. Shielding of electron in the p valence shell by inner election.
D. They are electropositive
The answer is A. the energy needed to form the 3-valent ion is very large
Question 8. Group IIIB element exhibit covalent character because of_____?
A. the energy needed to form the 3-valent ion is very large
B. Group IIIB element cannot donate or accept election
C. Shielding of electron in the p valence shell by inner election.
D. They are electropositive
The answer is A. the energy needed to form the 3-valent ion is very large
Question 9. all of the following are general characteristic of transition element except
A. All transition metal form alloy with one another and with other metallic element
B. All transition metal are good conductor of heat and electricity
C. All transitions metal are coloured
D. Most of the compound of transition metal are paramagnetic
Answer is C. All transitions metal are coloured
Question 10. on the periodic table_______ occupy a position between the highly electropositive element on the left and the electronegative on the right?
A. transition element
B. Inner transition element
C. S block and p block element
D. D block and f block element
Answer is A. Transition element
The End
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