Mention the constituent of food if the end result of the test shows :
Ash that does not burn after continued heating

Mention the constituent of food if the end result of the test shows : Turning blue-black after adding iodine solution.

Mention the constituent of food if the end result of the test shows : White to yellow and yellow to orange colour, after adding ammonium hydroxide.

Mention the constituent of food if the end result of the test shows : Blue green to deep red with appearance of precipitate when added to Fehling solution.

When trees become iron deficient, their leaves turn yellow prematurely. A botanist is testing iron doped fertilizers on maple trees with iron deficiencies. The botanist has selected 200 maple trees in the state of Wisconsin that have been identified as having an iron deficiency Half of the trees are randomly chosen to recieve the iron-doped fertilizer, while the other half are given a fertilizer without iron. The results from the test show that trees adminstered the iron doped fertilizer had fewer premature yellow leaves, indicating an increase in their iron levels. Which of the following statements best describes the results of the test?

1.0g of magnesium ribbon was placed in a crucible and heated with the lid on, until the magnesium began to burn brilliantly. At the end of experiment, there was 1.45 g of white powder. Show that this result does not agree with the equation: 2Mg_((s))+O_(2(g))rarr2MgO_((s)) Give an explanation for your answer.

Figure 2.39 shows a photograph that illustrates the kind of interference fringes that can result when white light, which is a mixture of all colors, is used in Young's experiment, Except for the central fringe, which is white, the bright frings are a rainbow of colors. Why does Young's experiment separate white light into the constituent colors? In any group of colored fringes, such as the two singled out in the figure, why is red farther out from the central fringe than green is? And finally, why is the central fringe white rather than colored?

What are the various enzymatic types of glandular secretions in our gut helping digestion of food? What is the nature of end products obtained after complete digestion of food?

Assertion: The loss of biologically useful energy as heat with every energy transfer in a food chain is a consequence of the second law of thermodynamics. Reason: Energy does not remain trapped permanetly in any organism. It is either passed on to higher trophic level or becomes available to detritivores and decomposers after the organism dies.

Near the end of a US cable news show, the host invited viewers to respond to a poll on the show’s website that asked, “Do you support the new federal policy discussed during the show?” At the end of the show, the host reported that 28% responded “Yes,” and 70% responded “No.” Which of the following best explains why the results are unlikely to represent the sentiments of the population of the United States?

Which of the following salts does show its correct nature mentioned against it ?