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(a) less than 7
(b) Wash the hand immediately with plenty of water and apply a paste of sodium hydrogencarbonate
(d) Lime
(d) Aqua regia
(c) absorb moisture from the gas
The pH of the gastric juices released during digestion is
(a) less than 7
(a) less than 7
See lessIf a few drops of a concentrated acid accidentally spills over the hand of a student. what should be done ?
(b) Wash the hand immediately with plenty of water and apply a paste of sodium hydrogencarbonate
(b) Wash the hand immediately with plenty of water and apply a paste of sodium hydrogencarbonate
See lessWhich of the following substance will not give carbon dioxide on treatment with dilute acid ?
(d) Lime
(d) Lime
See lessWhich of the following is used for dissolution of gold ?
(d) Aqua regia
(d) Aqua regia
See lessDuring the preparation of hydrongen chloride gas on a humid day, the gas is usually passed through the guard tube containing calcium chloride. The role of calcium chloride taken in the guard tube is to
(c) absorb moisture from the gas
(c) absorb moisture from the gas
See less