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Worksheetschemistry challenge
Total questions: 15
Worksheet time: 5mins
Which of the following substance consists of molecules?
Antara bahan berikut yang manakah mengandungi molekul-molekul?
Sodium
Natrium
Carbon
Karbon
Water
Air
Helium
Helium
When dry litmus paper is added to dry ammonia gas no change occurs, but a litmus paper change to blue when water is added to the mixture. It is because
Apabila kertas litmus kering dicampurkan kepada gas ammonia kering, tiada perubahan berlaku, tetapi kertas litmus berubah kepada biru apabila sedikit air dicampurkan kepada campuran itu. Ini adalah kerana
Magnesium reacts with water
magnesium bertindak balas dengan air
Dry litmus paper makes the dry ammonia not reactive
Kertas litmus kering menjadikan ammonia kering tidak aktif
Water is made up of hydrogen and hydroxide ion
air mengandungi ion-ion hidrogen dan ion-ion hidroksida
Ammonia ionize to form hydroxide ion in the presence of water
ammonia mengion menghasilkan ion-ion hidroksida dalam kehadiran air.
What is the number of molecules in 0.5 mole of sulphur dioxide, SO2?
Use the Avogadro constant = 6.02 X 1023 mol-1
Berapakah bilangan molekul dalam 0.5 mol gas sulfur dioksida,SO2 ?
Gunakan maklumat pemalar Avogadro = 6.02 X 1023 mol-1
3.01 X 1023
6.02 X 1023
9.03 X 1023
12.04 X 1023
Which of the following compounds react with ammonia to produce ammonium sulphate fertiliser?
Antara sebatian berikut, yang manakah bertindak balas dengan ammonia menghasilkan baja ammonium sulfat?
Sodium sulphate
Natrium sulfat
Sulphuric acid
Asid sulfurik
Carbon dioxide
Karbon dioksida
Phosphoric acid
Asid fosforik
Which of the following
is the empirical formula of etanoik acid, CH3COOH?
Antara berikut yang manakah merupakan formula empirik
bagi asid etanoik, CH3COOH?
CHO
CH2O
C2H4O2
CH3COOH
Which of the following is used in Contact process?
Antara berikut, yang manakah dgunakan dalam proses Sentuh?
Iron as catalyst
Besi sebagai mangkin
The temperature is 100oC
Suhu ialah 100oC
The pressure is 100 atmosphere
Tekanan ialah100 atmosfera
Sulphur as raw material
Sulfur sebagai bahan mentah
Which of the following salts dissolve in water?
Antara yang berikut, garam manakah larut dalam air?
Lead(II) sulphate
Plumbum(II) sulfat
Zinc chloride
Zink klorida
Silver chloride
Argentum klorida
Barium sulphate
Barium sulfat
Which is following is not a chemical property of acid?
Antara yang berikut, yang manakah bukan sifat kimia bagi asid?
Reacts with calcium carbonate to produce salt, water dan carbon dioxide?
Bertindak balas dengan kalsium karbonat menghasilkan garam, air dan karbon dioksida
Reacts with base to produce salt and water
Bertindak balas dengan bes menghailkan garam dan air
Reacts with magnesium to produce salt and carbon dioxide
Bertindak balas dengan magnesium menghasilkan garam dan karbon dioksida
Reacts with alkali to produce salt and water
Bertindak balas dengan alkali menghasilkan garam dan air
Which of the following elements form an ionic compound with chlorine?
Antara unsur-unsur berikut, yang manakah membentuk sebatian ionik dengan klorin?
Carbon
Karbon
Sulphur
Sulfur
Helium
Helium
Aluminium
Aluminium
What is the meaning of effective collision?
Apakah yang dimaksudkan dengan pelanggaran berkesan?
The collision between particles that has a low energy
Perlanggaran antara zarah yang mempunyai tenaga yang rendah
The collision between particles that causes a reaction
Perlanggaran antara zarah yang menghasilkan tindak balas
The collision between particles at higher temperature
Perlanggaran antara zarah pada suhu yang tinggi
The collision between particles where its energy is less than the activation energy
Perlanggaran antara zarah yang tenaganya lebih rendah daripada tenaga pengaktifan
Salt X is decomposed by strong heating. The residue is brown when hot and yellow when cold.
What is X?
Garam X terurai apabila dipanaskan dengan kuat. Bakinya berwarna perang ketika panas dan kuning ketika sejuk .
Apakah X?
Copper(II) nitrate
Kuprum (II) nitrat
Zinc carbonate
Zink karbonat
Zinc nitrate
Zink nitrat
Lead(II) nitrate
Plumbum(II) nitrat
Which of the following is suitable method to prepare copper(II) chloride?
Antara tindak balas berikut yang manakah kaedah yang sesuai untuk menyediakan kuprum(II) klorida?
Copper(II) nitrate and hydrochloric acid
Kuprum(II) nitrat dan asid hidroklorik
Copper and hydrochloric acid
Kuprum dan asid hidroklorik
Copper(II) oxide and hydrochloric acid
Kuprum(II) oksida dan asid hidroklorik
Copper(II) carbonate and sodium chloride
Kuprum(II) karbonat dan natrium klorida
Which of the following salts is prepared using double decomposition method?
Antara yang berikut, garam manakah yang disediakan dengan menggunakan kaedah penguraian ganda dua
Copper(II) sulphate
Kuprum(II) sulfat
Lead(II) chloride
Plumbum(II) klorida
Iron(II) nitrate
Ferum(II) nitrat
Potassium carbonate
Kalium karbonat
Which of the following substances ionizes partially in water?
Antara bahan berikut, yang manakah mengion separa di dalam air?
HCl
NaOH
CH3OH
CH3COOH
Which of the following substances does not produce gas at the anode and the cathode during electrolysis process?
Antara bahan berikut, yang manakah tidak akan menghasilkan gas pada anod dan katod semasa proses elektrolisis?
Sulphuric acid
Asid sulfurik
Sodium sulphate solution
Larutan natrium sulfat
Copper(II) nitrate solution
Larutan kuprum(II) nitrat
Potassium nitrate solution
Larutan kalium nitrat
