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Which one is incorrect match:-   TITRATION INDICATOR 1) Strong acid v/s strong base Phenolphthalein & methyl Orange 2) Weak acid v/s strong base Phenolphthalein 3) Strong acid v/s weak base Methyl orange 4) Weak acid v/s weak base Methyl Red
Samples A, B, C and D are tested for their nature using turmeric and Phenolphthalein and the following observations are recorded. A- turns reddish-brown on adding turmeric B- turns pink on adding Phenolphthalein C- turns yellow on adding turmeric D- remains colourless on adding Phenolphthalein What can be concluded about the nature of A, B, C and D?
Which of the following statement(s) is/are CORRECT? I. Bakelite is a good conductor of heat. II. Bakelite is a poor conductor of electricity. III. Bakelite can be softened by heating.
Aspirin is produced from the reaction between salicylic acid and which compound?
Consider the following statements: (a) Both acids and bases change the colour of all indicators. (b) If an indicator gives a colour change with an acid, it does not give a change with a base. (c) If an indicator changes colour with a base, it does not change colour with an acid. (d) Change of colour in an acid and a base depends on the type of the indicator. Which of these statements are correct?
In a batch process, the reaction takes place in the presence of an acid medium. The acid is drained from the reaction vessel at the rate of 15ml/s as a result of the density difference of the acid from the reacting component. To avoid wastage of acid, it is recycled to an acid tank which has 1000 L capacity. The acid drained from the reaction vessel, picks up 50 g/L solids from the reactor. Acid is fed once again to the process from acid tank. When the process is started, the acid is almost pure in the tank as a result of filtration. As the reaction proceeds, acid in the tank gets more and more contaminated with the solids. The concentration of the solids should not exceed 100 g/L from the process point of view. The batch time is 16h. Estimate whether the concentration of the solids will exceed 100g/L during the batch reaction.
Consider the following regarding the indicator with regard to the identification of acid:  I. Blue Litmus Paper: turns red  II. Phenolphthalein: From violet to yellow  III. Methyl Orange: From orange to green  Which among the above is/are correct?
Compound A (C9H10O) shows positive iodoform test. Oxidation of A with KMnO4/KOH gives acid B (C8H6O4). Anhydride of B is used for the preparation of phenolphthalein. Compound A is:
The widest explosive limit is of __________ , thereby making it the most explosive gas.
Consider the following statements. 1. Bakelite and Melamine are an example of thermoplastics. 2. Thermoplastics are used for making electrical switches, floor tiles, etc. Which among the above is/are correct?