By which bond amino acids are bonded?
Anonymous Quiz
11%
Sulphur bond
32%
Phosphate bond
53%
Peptide bond
4%
None
👍2
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Pick out the correct option for non-metals.
Anonymous Quiz
16%
All non-metals are gases.
47%
Most of the non-metals can be solid or gas.
12%
Most of the non-metals are liquids.
25%
None of the above
👍3
The metal that is utilised in Laboratories for producing hydrogen is _______.
Anonymous Quiz
32%
Aluminium
29%
Copper
19%
Iron
19%
Zinc
👍2
Choose the property of a metal due to which metals can be formed into thin sheets.
Anonymous Quiz
35%
Ductility
17%
Conductivity
42%
Melability
6%
High density
👍2
If the elements are arranged in increasing order of reactivity, what is the correct order?
Anonymous Quiz
26%
Silver, copper,zinc and Aluminium
25%
Copper, silver, zinc, and Aluminium
37%
Aluminium, zinc, Copper, and silver
12%
Zinc, aluminium, silver, and copper
👍1
Reactivity series is the arrangement of metals in the :
Anonymous Quiz
38%
Decreasing order of reactivity
47%
Increasing order of reactivity
11%
Random order
4%
None of the above
👏2
In a dangerous experiment, potassium was dropped in water. Which of the following can be a valid conclusion?
Anonymous Quiz
41%
An explosion occurred because Potassium is highly reactive
31%
Potassium hydroxide and hydrogen gas were formed
7%
No reaction took place
21%
Both a and b
👍2
Which of the following is the most reactive alkali metal?
Anonymous Quiz
37%
Sodium
36%
Potassium
15%
Cesium
12%
Lithium
👍2
Metals react with nonmetals to form salt and water. What type of bonding is involved in such salt formation?
Anonymous Quiz
42%
Ionic
37%
Covalent
15%
Co-ordinate
5%
None of the above
👍2
The number of outermost electrons will be the maximum in:
Anonymous Quiz
33%
2
14%
3
36%
4
17%
No ion is formed
👍1
Which of the following reactions is responsible for the corrosion of metal?
Anonymous Quiz
54%
Chemical reactions
15%
Physical reactions
29%
Both a and b
3%
Neither a nor b
👍1
Name the plant which has unisexual flowers?
Anonymous Quiz
13%
Mustard
56%
Papaya
19%
Hibiscus
12%
All
👍1
What is stamen?
Anonymous Quiz
16%
Provide Protection to flower
70%
A male Reproductive Organ
12%
A female reproductive Organ
2%
None
👍1
Stamen consist of ___
Anonymous Quiz
54%
Anther and Filament
31%
Stigma and Filament
11%
Anther and style
4%
Stigma and Style
👍1
A carpel / pistil consists of ______
Anonymous Quiz
31%
Ovary/Filament/Stigma
51%
Style/Ovary/Stigma
13%
Anther/Style/Ovary
5%
Anther/Filament/Ovary
👍1
How many ovules can be present in an ovary of plant?
Anonymous Quiz
14%
One
31%
Two
11%
Three
44%
One or more then one
Which of the following is not a part of reproductive organs in plant?
Anonymous Quiz
13%
Anthers
61%
Petals
12%
Stigma
15%
Filament
👍2