Question

1 10:30 واتساب QI: How many unpaired electrons the metal aluminum has? A: B: 2 CO 3 D: 4 Q2: Which of the element of the following is diamagnetic? A: Na B: Ca C: HD: Ar Q3: What is the oxidation state of Al in AICI? A: +1 B: +2 C: +3 D: +4 Q4: Which one of the following behaves like a non- electrolyte in water solution? B: Carbon tetrachloride C: MgBr2 D: A: Sodium NH3 Q5: What is an exothermic process? A: A process that liberates heat B: A process that becomes cool C: A process that becomes activated and produces electricity D:A process that emits light and heat Q6: Which one has the highest lattice energy? A: Nal B: NaF C NaCID: NaBr Q7: What is the standard atmospheric pressure? A: 76 mm of Hg B: 760 mm of Hg C: 76m of Hg

Answer 1

Answers for question 1 to 4

Quand electronic Configuration of Al- - 18²2s²2p63523p! valancce eke tarong! 3523p! one unpaired electron. Āi

& 2 Ans! electeronic Configuration! Nat 1s228²ap63s! Valance electron! 351 I one unpaired electron 2 (B) ca 152252286352386452. valence electrons us2 diamagnetic both L lkectrong core paired H is! Jone unpaisted electron] ) Ar 152252ap6352 3p6 Valence ekectrons = 3523p6 14 Ach fall electrons paired dicemagnetic Band D are correct o as

(0-3 oxidation state of All Aklz Y Allt tar 0.5= +3 of Al T +3 cou sodium, MqBG InHo can be act as electrolyte as polar in nature ecla (Carbon tetrachloride) non polar in nature so act ass non-electrolyte in Ho (water) 3 4