Question

A) ICI B) BrF C) HBr D) all of the above E) none of the above Section: 12.1 The Chemical Bond Concept 33) Which of the following anions is isoelectronic with argon? A) nitride ion B) sulfide ion C) bromide ion D) all of the above E) none of the above Section: 12.2 lonic Bonds 34) Draw the electron dot formula for ammonia, NH3. How many nonbonding electron pairs are in an ammonia molecule? A) 1 B) 2 C) 3 D) 6 E) none of the above Section: 12.4 Electron Dot Formulas of Molecules 35) Draw the electron dot formula for methane, CH4. How many nonbonding electron pairs are in a methane molecule? A) 0 B) 1 C) 4 D) 6 E) none of the above Section: 12.4 Electron Dot Formulas of Molecules 36) Draw the structural formula for hydrogen fluoride, HF, and state the type of bond in a hydrogen fluoride molecule. A) 1 single bond B) 1 double bond C) 1 triple bond D) 1 hydrogen bond E) none of the above Section: 12.4 Electron Dot Formulas of Molecules 37) Which of the following is a general trend for the electronegativity of elements in the periodic table? A) decreases from left to right; increases from bottom to top

Answer 1

33) Answer is B). Both argon and sulphide contain 18 electrons thus are isoelectronic.

34) Answer is A). Ammonia contain one lone pair electrons.

Н-N—H Cs Car Sre Scamee wth Z-I

35) Answer is A). Methane don't have any non-bonding electrons.

Н Н- -н Н scd

36) Answer is A). HF contain one single bond.

H F: Cs Surd CarnScare

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