Chemistry Random Retrieval Y12

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Chemistry Year 12 Random Retrieval

This quiz contains all the questions in the year 12 chemistry section. The website will pick 10 questions at random.

1 / 10

How many structural isomers of C6H14 are there?

2 / 10

3 / 10

Choose one of the following options:

4 / 10


Choose one of the following options:

5 / 10

What is the electron configuration of a magnesium atom?

6 / 10

When iron(II) chloride solution mixes with silver nitrate solution some silver metal precipitates and the mixture reaches an equilibrium state.

Fe2+(aq) + Ag+(aq) <=> Fe3+(aq) + Ag(s)

When the aqueous layer is decanted off, the precipitate of silver redissolves on adding a solution of:

7 / 10

Which of these reactions can be reversed by changing the conditions in a typical advanced chemistry laboratory?

(i) CuSO4.5H2O(s) -> CuSO4(s) + 5H2O(l)

(ii) 2Mg(s) + O2(g) -> 2MgO(s)

(iii) NH3(g) + HCl(g) -> NH4Cl(s)

(iv) CH4(g) + 2O2(g) -> CO2(g) + 2H2O(l)

8 / 10

How many moles of molecules are there in 0.240 g bromine?

9 / 10

In the formula of water, H-O-H, the lines represent:

(i) shared pairs of electrons

(ii) dative bonds

(iii) covalent bonds

(iv) hydrogen bonds

10 / 10

In which of these solids are there two types of bonding: one strong and one weak?

(i) diamond

(ii) ice

(iii) sodium chloride

(iv) graphite

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17

Foundations in Chemistry Random Retrieval

This quiz contains all the questions in the Foundations in Chemistry section. The website will pick 10 questions at random.

1 / 10

In which of the following industrial conversions is a chemical species (atoms, molecule or ion) oxidised to give the element:

(i) iron ore oxide to iron

(ii) potassium iodate(V) to iodine

(iii) copper(II) sulfate to copper

(iv) sodium chloride to chlorine

2 / 10

What is the concentration of hydroxide ions in a 0.050 mol dm-3 solution of barium hydroxide?

3 / 10

What is the bond angle found in SF6?

4 / 10

What is the bond angle found in BF3?

5 / 10

An ammonia molecule, NH3, can react to form an ammonium ion, NH4+. When this happens:

(i) the ammonia molecule forms a bond with a proton

(ii) the ion formed has a tetrahedral shape

(iii) a dative covalent bond forms

(iv) the H-N-H bond angle is 90o

6 / 10

An element M has two electrons in its outer shell. An element X has seven electrons in its outer shell. What is the likely formula of the compound of X and Y?

7 / 10

A 20.0 cm3 sample of barium hydroxide solution, Ba(OH)2(aq), was neutralised by exactly 18.0 cm3 of 0.10 mol dm-3 hydrochloric acid, HCl(aq). What was the concentration of the barium hydroxide solution?

8 / 10

Which one of the following is the electron configuration of a group 2 metal atom?

9 / 10

The particle with 3 protons, 4 neutrons and 2 electrons is a:

10 / 10

How many neutrons are there in an atom of boron with mass number 9 and atomic number 4?

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4

Period Table & Energy Random Retrieval

This quiz contains all the questions in the Period Table & Energy section. The website will pick 10 questions at random.

1 / 10

Each of these statements is true. From which statement is it possible to predict, by application of Le Chatelier's principle that the solubility of sodium hydroxide increases with temperature?

2 / 10

Using enthalpies of formation ΔfH, calculate the enthalpy change for the following hydration process.

Na2S2O3(s) + 5H2O(l) => Na2S2O3•5H2O(s)

Select the data from the 'Selection of Enthalpies of Formation and Combustion' shown above.

If this question was generated from Random Retrieval, this data can also be found in TOOLS>Data Sheets.

3 / 10

Which of the following properties increase from left to right across the series: AgCl - AgBr - AgI?

(i) intensity of colour

(ii) solubility in ammonia solution

(iii) ease of oxidation to the halogens

(iv) solubility in aqueous ammonia

4 / 10

The electron configuration of a chloride ion is:

5 / 10

A white crystalline solid gives a pale green colour in a flame. Adding silver nitrate to an acidified solution of the solid produces a white precipitate. The solid is:

6 / 10

What is the oxidation number of CARBON in methanol

CH3OH

7 / 10

What is the oxidation number of NITROGEN in

NaNH2

8 / 10

What is the oxidation number of BROMINE in

BrO-

9 / 10

What is the oxidation number of OSMIUM in

OsO4

10 / 10

In the periodic table a periodic pattern is:

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15

Core Organic Chemistry Random Retrieval

This quiz contains all the questions in the Core Organic Chemistry section. The website will pick 10 questions at random.

1 / 10


Choose one of the following options:

2 / 10

How many structural isomers of C4H8O are there?

It's really difficult to get all of these structures, so don't panic if you miss some. Just spend some time sketching out all the possibilities and remembering some simple rules, e.g carbon forms 4 bonds, oxygen forms 2 etc. Be creative!

3 / 10

How many structural isomers of C6H14 are there?

4 / 10

Which of these organic compounds show a broad absorption peak caused by hydrogen bonding affecting a functional group.

(i) propanol

(ii) propanal

(iii) propanoic acid

(iv) propanone

5 / 10

In a two step synthesis of butanoic acid what is the formula of compound X?

CH3CH2CH2Br -> X -> CH3CH2CH2CO2H

6 / 10

Which reagent can be used to convert butan-1-ol to but-1-ene?

7 / 10

What is the H-C-H bond angle in ethene?

8 / 10

Name the alkene CH3CH(CH3)CH=CHCH3.

9 / 10

At a high temperature in the presence of steam, the alkane C16H24 reacts to form a mixture of ethene, propene and ethane. This is an example of:

10 / 10

Burning a hydrocarbon fuel such as methane gas in a limited supply of air is dangerous because under these conditions one of the products is:

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