alleryStart learning →Which metal is used in long-life batteries of watches and calculators?
- Calcium
- Sodium
- Lithium
- Potassium
Show answer and solution
Correct answer: C. Lithium
Lithium is light and gives long-life cells for digital watches, calculators and computers.
MHT-CET Elements of Group 1 and 2 — practice questions — page 2
Explore 51 free Elements of Group 1 and 2 questions in MHT-CET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.
Practise Elements of Group 1 and 2 with Quill →Elements of Group 1 and 2 questions and exercises with answers
Showing questions 31–51 of 51.
Which metal is used in long-life batteries of watches and calculators?Read the answer and worked solution →Which liquid metal is used for heat transfer in nuclear power stations?Read the answer and worked solution →Which potassium compound is used as a fertilizer?Read the answer and worked solution →Which group 2 element is used as a moderator in nuclear reactors?Read the answer and worked solution →Which barium compound is given as a barium meal for intestinal X-rays?Read the answer and worked solution →An alloy of magnesium and which metal is used in aircraft?Read the answer and worked solution →Which ion is present in the largest amount in extracellular fluids?Read the answer and worked solution →Which ion is the most abundant ion within cells?Read the answer and worked solution →Which ions take part in the transmission of nerve signals?Read the answer and worked solution →Which ion forms an important part of chlorophyll in green plants?Read the answer and worked solution →Bones and teeth contain calcium mainly in the form of which mineral?Read the answer and worked solution →Which metal ion plays an important role in blood clotting?Read the answer and worked solution →Which pair of alkali metals was first discovered using the spectroscope?Read the answer and worked solution →Alkali metals are usually stored under which liquid?Read the answer and worked solution →Which alkali metal reacts with nitrogen at standard conditions?Read the answer and worked solution →Alkali metals react with cold water to give hydrogen and a:Read the answer and worked solution →Which alkaline earth metals are toxic?Read the answer and worked solution →Which two group 2 elements are abundant in the earth crust?Read the answer and worked solution →Aluminium, the diagonal partner of beryllium, belongs to which group?Read the answer and worked solution →Which condensed electronic configuration belongs to sodium (Z = 11)?Read the answer and worked solution →Which anion is present in sodium peroxide, Na2O2?Read the answer and worked solution →
Worked practice questions
Which liquid metal is used for heat transfer in nuclear power stations?
- Liquid caesium
- Liquid lithium
- Liquid sodium
- Liquid calcium
Show answer and solution
Correct answer: C. Liquid sodium
Liquid sodium carries heat away from the reactor core in nuclear power stations.
Which potassium compound is used as a fertilizer?
- Potassium hydroxide
- Potassium chloride
- Potassium superoxide
- Potassium amide
Show answer and solution
Correct answer: B. Potassium chloride
Potassium chloride supplies potassium to crops, so it is used as a fertilizer.
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