eChoice Questions will deduct3points each. Write the letter in the space provide
ID: 562272 • Letter: E
Question
eChoice Questions will deduct3points each. Write the letter in the space provided or l 1. What is the chemical equation that represents the property of ionization energy? 2. Which element most readily gives away an electron? a. F b. O Li e. Cu C. .3 a. IV and V b, ll and Ill c. Iand ill -aland IV e, none of these 4. In which of the "Trends of the Periodic Table" is hydrogen the highest (or biggest) and iodine is the lowest (or smallest)? a. ionization potential b. metallic character d. ion size electron affinity e. none of these b.C 5. The element potassium is less reactive than which of the following elements? a. hydrogen ithium C. sodium d. cesium 6. The properties of a metal do NOT include which of the following? a. good conductor of electricity bsolid at room temperature (except Hg) c. shiny d. forms a negative ion e. all these are properties of metals C7. Oxides of Group IA metals form which of the following upon reaction with c. neutral solution d. weak base water? a, strong acid b. weak acid strong base Which of the following ionic compounds would have the highest lattice energy? a/KF b. KI 9. How many lone pairs and bonding pairs (in that order) of electrons are in a molecule of CO2? a. 2,9 b.4,4 C6.2 10. In the N-O bond the nitrogen atom a. is the more negative atomb. is the more positive atomc. is neutral t 62 2 d,4, 2Explanation / Answer
4]
Ionisation potential
Hydrogen has highest ionisation than Iodine which is having low value
Answer is a
10]
Oxygen is more elctronegative than Nitrogen
So in NO bond , Nitrogen is more positive
Answer is b
13]
In CCl4 there are 3 lone pairs around each chlorine atom ---> 4*3 = 12 lone pairs
Answer is d
4]
The carbons bonded with double bonds are in the same plane rest of the carbons are projected above or below the plane
CO3-2 is non polar because of the trigonal planar shape and resonance where partial double bond distributed
between Carbon and Each Oxygen
rest all are correct
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