USP Kimia

USP Kimia

12th Grade

40 Qs

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USP Kimia

USP Kimia

Assessment

Quiz

Chemistry

12th Grade

Practice Problem

Hard

Created by

smam 3tanjunganom

Used 5+ times

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40 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Harga keempat bilangan kuantum elektron terakhir dari atom 11Na adalah

n = 3, l = 0, m = 0, s = -1/2

n = 3, l = 0, m = 0, s = +1/2

n = 3, l = 1, m = 1, s = +1/2

n = 3, l = 1, m = 1, s = -1/2

n = 2, l = 1, m = 0, s = +1/2

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Pernyataan di bawah ini yang benar adalah

Jari-jari atom 12Mg lebih kecil daripada 16S

Jari-jari atom 13Al lebih besar daripada 12Mg

Energi ionisasi 16S lebih besar daripada 17Cl

Afinitas elektron 13Al lebih besar daripada 16S

Elektronegativitas 8O lebih besar daripada 13Al

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

Perhatikan struktur Lewis molekul H2SO4 di atas. Ikatan kovalen koordinat ditunjukkan oleh ikatan nomor

1

2

3

4

5

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Gaya antar molekul yang bekerja pada molekul HF sehingga mempunyai titik didih yang lebih tinggi daripada HCl adalah

Gaya dipol-dipol

Gaya dispersi

Ikatan hidrogen

Gaya imbas

Ikatan kovalen

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Dalam kehidupan sehari-hari, karbit sering digunakan untuk pengelasan logam karena gas yang dihasilkan dari reaksi karbit dengan air mempunyai sifat mudah terbakar, nyala terang dan berkalor tinggi. Reaksi yang benar dari peristiwa tersebut adalah

CaC2 (s) + 2H2O (l) → Ca(OH)2 (aq) + C2H2 (g)

CaC2 (s) + 5/2 O2 (g) → CaO (s) + 2CO2 (g)

CaC2 (s) + 2H2O (l) + 3/2 O2 (g) →CaCO3 (s) + 2H2 (g) + CO2 (g)

CaC2 (s) + 2H2O (aq) → CaO (s) + CH4 (g) + CO(g)

CaC2 (s) + 2H2O (s) → Ca(OH)2 (l) + C2H2 (g)

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Suatu senyawa hidrokarbon tersusun dari 80% C dan 20% H. Jika massa molekul relatif senyaa tersebut 30 maka rumus molekul senyawa tersebut adalah

CH3

C2H6

C3H6

C2H4

C3H8

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Berapa volume air yang diperlukan untuk membuat larutan 4,5 gram C6H12O6 0,1 M? (Mr = 180 g/mol)

500 mL

250 mL

1L

50 mL

100 mL

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