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Which of the following two statements is correct?   a. The soda commonly used in the kitchen for making tasty crispy pokodas is baking soda. The baking soda is a sodium carbonate.  b. Washing soda is usually used as a cleaning agent for domestic purposes and in glass, soap, paper industries. The washing soda is sodium hydrogen carbonate.
What will be the final concentration of soda in a mixture of water and soda when 30 litres of soda in added to the mixture? Statement I: Initial quantity and concentration of soda in the mixture were 20 L and 40% Statement II: Initially, water and soda in the mixture were in the ratio 3 : 2.
Which of the following are the applications of common salt? (i) It is used as preservative. (ii) It is used for manufacture of Na metal and Cl2(g) by electrolysis in molten state. (iii) It is used for manufacture of caustic soda. (iv) It is used for manufacturing baking soda and washing soda by Solvay process.
A bartender makes a mixture of 18 litres of wine and soda, it contains 30% soda. How much soda should be added to it to increase the percentage of soda to 40%?
Among the five objects, Gas stove, Washing machine, Refrigerator, Inverter and Microwave oven: the Washing machine is twice as heavy as the Inverter; the Gas stove is one and half time as heavy as the Microwave oven; the Washing machine and Microwave oven together weigh as much as the Gas stove and Inverter together; the Refrigerator and Inverter together are one and half times as heavy as the Gas stove. Which is the heaviest among the five objects?
In a certain laboratory, chemicals are identified by a colour-coding system. There are 20 different chemicals. Each one is coded with either a single colour or a unique two-colour pair. If the order of colours in the pairs does not matter, what is the minimum number of different colours needed to code all 20 chemicals with either a single colour or a unique pair of colours?
Which of the following statement is correct? I. The chemical name of washing soda is sodium carbonate. II. The chemical name of Baking soda is calcium hypochlorite.
Which of the following statement(s) is/are correct?
1. If sodium carbonate and washing soda is mixed in water the hardness of water can be removed.
2. The reaction of the chemicals produce sodium sulphate, sodium carbonate and insoluble calcium carbonate.
3. Magnesium sulphate chloride and magnesium carbonate is also produced.
Select the correct answer
In 250 litres mixture of soda and water the ratio of amount of soda to that of water is 7 : 18. In order to make this ratio 2 : 3, how many more litres of soda should be added?
In the following question, two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statement I: No green is toxic. Statement II: Some chemicals are green. Conclusion I: Some chemicals are toxic. Conclusion II: Some green are chemicals.