Which of the following substances undergoes chemical change
on heating?
1 Sodium chloride
2 Silica
3 Lead nitrate
4 Platinum wire
Answers were Sorted based on User's Feedback
Answer / satyajit nemade
lead nitrate on heating gives lead oxide with the
liberation of nitrogen dioxide gas and oxygen gas
| Is This Answer Correct ? | 20 Yes | 2 No |
What are all of the uses for a dynamo?
Atoms of an element differ from those of all other elements in 1 Atomic number and electronic configuration 2 Atomic number and number of valence electrons 3 Number of neutrons and electronic configuration 4 None of these
What is super nova?
What is the Taxonomy ?
HELPS IN PROPAGATING RADIO SIGNALS
Please can someone tell me, how many times during a 12 hour period, do the hands of a clock face opposite each other? I believe its 11. Also, would this be the same, no matter WHAT the starting time? i.e. if the 12 hour period started at 6 o clock, would it still be 11 times? Many thanks for your help.
How can we determine the no: of revolutions of earth around sun?
Which of the following minerals has the lower numerical hardness value? 1 Talc 2 Gypsum 3 Apatite 4 Topaz
Which of the following metals was first discovered by man? 1 Bronze 2 Silver 3 Iron 4 Copper
The element nickel is a 1 Magnetic metal 2 Radioactive metal 3 Non magnetic metal 4 Complex element
Which of the following is a protein? 1 Wool 2 Starch 3 Natural rubber 4 Cellulose
How does common salt help in separating soap from the solution after saponification ? 1 By decreasing solubility of soap 2 By increasing solubility of soap 3 By decreasing density of soap 4 By increasing density of soap