alleryMatch the indicator test to its colour change
Read exercise and reference answers
- Matching pairs
- Left
- Blue litmus in acid
- Right
- Turns red
- Left
- Red litmus in base
- Right
- Turns blue
- Left
- Phenolphthalein in base
- Right
- Turns pink
NDA Light and Sound — practice questions
Explore 11 free Light and Sound questions in NDA Physics. Open each question or exercise to read its content, reference answers and available explanation.
Practise Light and Sound with Quill →Light and Sound questions and exercises with answers
Showing questions 1–11 of 11.
Match the indicator test to its colour changeRead the answer and worked solution →Match each carbon term to its meaningRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →Match each indicator to its resultRead the answer and worked solution →Match each indicator to its resultRead the answer and worked solution →True or false: acids and basesRead the answer and worked solution →Match each carbon term to its meaningRead the answer and worked solution →Which one does NOT belong?Read the answer and worked solution →Key in the carbon numberRead the answer and worked solution →Saturated, unsaturated or neither?Read the answer and worked solution →Match the indicator test to its colour changeRead the answer and worked solution →
Worked practice questions
Match each carbon term to its meaning
Read exercise and reference answers
- Matching pairs
- Left
- Catenation
- Right
- Carbon bonding to other carbon atoms
- Left
- Tetravalency
- Right
- Carbon having four valence electrons
- Left
- Covalent bond
- Right
- A bond made by sharing an electron pair
- Instructions
- Tap a term on the left, then tap what it means.
_Source: syllabus Science Ch4 Carbon and its Compounds, 4.1 BONDING IN CARBON_
Which one does NOT belong?
Read exercise and reference answers
- Questions
- Items
- Methane
- Ethane
- Ethene
- Propane
- Reason
- Ethene has a double bond, so it is an alkene. The other three are alkanes with single bonds only.
- Odd item
- Ethene
- Items
- Alkanes
- Alkenes
- Alkynes
- Alcohols
- Reason
- Alcohols contain oxygen. Alkanes, alkenes and alkynes are all hydrocarbons, made of carbon and hydrogen only.
- Odd item
- Alcohols
- Items
- C2H5OH
- CH4
- C2H6
- C3H8
- Reason
- Ethanol carries an oxygen atom, so it is not a hydrocarbon. The rest are alkanes.
- Odd item
- C2H5OH
- Instructions
- Tap the item that does not belong with the rest.
_Source: syllabus Science Ch4 Carbon and its Compounds, 4.1 BONDING IN CARBON_
How to practise
- Choose a Light and Sound question and try to work out your answer.
- Open the question to check the correct answer and read its worked solution.
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