Which one of the given is true, if a substance has a pH value of 4? Mark as favorite Copy Link The substance is a neutral substance The substance is a base The substance is an acid Either (1) or (2) Check Answer
A strong acid? Mark as favorite Copy Link Do not get ionized in water Partially gets ionized in water Completely gets ionized in water All the these Check Answer
Rain is called acid rain when its? Mark as favorite Copy Link pH falls below 6 pH falls below 5.6 pH falls below 7 pH is above 7 Check Answer
Sodium hydroxide turns phenolphthalein solution? Mark as favorite Copy Link orange colourless pink yellow Check Answer
Nettle sting is a natural source of which acid? Mark as favorite Copy Link Tartaric acid Citric acid Lactic acid MetiWanoic acid Check Answer
Lime water reacts with chlorine to form? Mark as favorite Copy Link Ca(ClO3)2 CaCl2 CaOCl2 CaO2Cl2 Check Answer
Which of the following is used for dissolution of gold? Mark as favorite Copy Link Aqua- regia Sulphuric acid Hydrochloride acid Nitric acid Check Answer
Which of the following statement is or are incorrect? Mark as favorite Copy Link The acids prepared from the minerals of the earth are called mineral acids. Concentrated mineral acids are weak acids, so they are not very dangerous. Organic acids are weak acids, so it is not harmful to eat or drink. The acids present in plants materials and animals are called organic acids. Check Answer
Which of the following statement is or are incorrect? Mark as favorite Copy Link The acids prepared from the minerals of the earth are called mineral acids. Concentrated mineral acids are weak acids, so they are not very dangerous. Organic acids are weak acids, so it is not harmful to eat or drink. The acids present in plants materials and animals are called organic acids. Check Answer