What is the other name for group 18th elements?
Anonymous Quiz
55%
Noble gases
23%
Alkali metals
12%
earth metals
9%
Halogens
Which group elements are called transition metals?
Anonymous Quiz
26%
Group number 1 to 2
47%
Group number 13 to 18
20%
Group number 3 to 12
7%
Group number 1 to 8
The electronic configuration of an element M is 2, 8, 4. In the modern periodic table, the element M is placed in
Anonymous Quiz
35%
4th group
33%
2nd group
26%
14th group
6%
18th group
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Boron is a non-metal and is placed under group 13 and period 2. How can boron form bonds with other elements?
Anonymous Quiz
26%
By sharing 5 electrons
48%
By sharing 3 electrons
18%
By sharing 2 electrons
7%
By sharing 1 electron
Electronegativity is defined as the ability of an element to form bonds by gaining electrons. How does the electronegativity of elements vary across the periods?
Anonymous Quiz
27%
It increases as the number of shells increases
32%
It decreases as the number of shells decreases
32%
It increases as more electrons are added to the same shell
9%
It decreases as more electrons are added to the same shell
What is the order of the metallic character down the group?
Anonymous Quiz
31%
It decreases as new shells are added to the element
35%
It increases as electrons move away from the nucleus
21%
It increases as new atoms are added to the same shell
13%
It decreases as the effective nuclear charge on the electron increases
hello baccho🎉, lets begin the polls of your biology chapter "Life process" ✨
The respiratory pigment in human beings is:
Anonymous Quiz
10%
Carotene
13%
Chlorophyll
65%
Haemoglobin
12%
Mitochondria
Which of the following is the important characteristic of Emphysema?
Anonymous Quiz
37%
Destruction of the alveolar wall and air sacs in the lungs are damaged
34%
Increase in the growth of the lung tissue
20%
Inflammation in the wall of the bronchi
9%
Thickening of the artery walls of the lungs
The characteristic processes observed in anaerobic respiration are: i) Presence of oxygen ii) Release of carbon dioxide iii) Release of energy iv) Release of lactic acid
Anonymous Quiz
19%
(i), ii) only
22%
i), ii), iii) only
42%
ii), iii), iv) only
17%
iv) only
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How is food transported from the phloem to the tissues according to plants’ needs?
Anonymous Quiz
20%
Food is transported along with the water in the plant’s body
24%
Food is transported in only one direction, like water in the plant body through the xylem
26%
Food is transported from a region with a low concentration to a higher concentration
31%
Food is transported from the region where it is produced to other parts of the plants
Which of the following is the correct sequence of body parts in the human alimentary canal?
Anonymous Quiz
11%
Mouth → stomach → small intestine → large intestine → oesophagus
73%
Mouth → oesophagus → stomach → small intestine → large intestine
7%
Mouth → stomach → oesophagus → small intestine → large intestine
9%
Mouth → oesophagus → stomach → large intestine → small intestine