Bahan kimia yang mempunyai kepekatan ion hidroksida yang rendah ialah

Quizziz Kimia 11

Quiz
•
Chemistry
•
5th Grade
•
Medium
NOR Moe
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
asid kuat
asid lemah
alkali kuat
alkali lemah
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Bahan X mempunyai ciri-ciri berikut:
Menukarkan kertas litmus biru lembap kepada merah
Rasa masam
Menghasilkan gelembung gas apabila bertindak balas dengan serbuk zink
Apakah formula molekul bagi bahan X?
C2H6
C2H5OH
CH3COOH
CH2COOC2H5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Antara berikut, yang manakah menunjukkan pasangan siri homolog dengan kumpulan berfungsinya yang betul?
Asid karboksilik - Karboksilat
Alkohol - Hidroksil
Alkena - Ikatan ganda tiga antara atom karbon
Alkuna - Ikatan ganda dua antara atom karbon
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Mengapa kereaktifan unsur Kumpulan 17 berkurang apabila menuruni kumpulan?
Keadaan fizik bagi unsur berubah daripada gas kepada cecair dan kemudian kepada pepejal pada suhu bilik
Elektron valens semakin jauh dari nukleus
Daya tarikan antara elektron valens dengan nukleus semakin kuat
Takat lebur bagi unsur menurun
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Keupayaan elektrod piawai bagi dua tindak balas sel setengah ditunjukkan di bawah
Fe3+ + e- ⇌ Fe2+ E⁰ = + 0.77 V
Ni2+ + 2e- ⇌ Ni E⁰= - 0.25 V
Bahan yang manakah agen penurunan yang paling kuat?
Fe3+
Fe2+
Ni2+
Ni
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sebatian X menukarkan warna perang air bromin kepada tidak berwarna. Apakah siri homolog bagi X?
Alkana
Alkena
Alkohol
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Ubat X - melegakan kesakitan
ubat Y - merencatkan pertumbuhan bakteria
Apakah ubat X dan Y?
X - analgesik
Y - antimikrob
X - analgesik
Y - antialergi
X - kortikosteroid
Y - antialergi
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