Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
E-Mail*
You must login to ask question.
Username or email*
Password*
(d) An antacid
(b) tartaric acid
(d) Hydrochloric acid
(b) Lead acetate
(d) Heating copper wire in presence of air at high temperature.
A sample of soil is mixer with water and allowed to settle. The clear supernatant solution turns the pH paper yellowish-orange. Which of the following would change the colour of this pH paper to greenish-blue ?
(d) An antacid
(d) An antacid
See lessOne of the constituents of baking powder is sodium hydrogencarbonate, the other constituent is
(b) tartaric acid
(b) tartaric acid
See lessAn aqueous solution turns red litmus solution blue. Excess addition of which of the following solution would reverse the change ?
(d) Hydrochloric acid
(d) Hydrochloric acid
See lessIn the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, a yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of lead nitrate ?
(b) Lead acetate
(b) Lead acetate
See lessWhich one of the following processes involve chemical reactions ?
(d) Heating copper wire in presence of air at high temperature.
(d) Heating copper wire in presence of air at high temperature.
See less