Question
The two metal ions that cause hardness to water are……………?
More Chemistry GS Questions
- Who proposed the 'Law of Octaves' in the periodic classification of elements?
- Which of the following does not give effervescence with sodium carbonate?
- Which acid is present in grapes?
- Rod of which of the following metal is used in nuclear reactors to slow down the speed of the neutrons?
- Modern periodic table has ______ groups and ______ periods.
- Which of the following organic compounds undergo nucleophilic substitution reaction most easily?
- The weakest of all fundamental forces is –
- Which of the following is arranged in order of decreasing conductivity?
- Which gas is added under pressure to make soft drinks fizzy?
- Heat stored in water vapour is –
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