pH value less than 7 indicates that the solution is –
Anonymous Quiz
51%
Acidic
27%
Basic
21%
Neutral
2%
No effect
👎44👍1
👀4👍3👏2😁2
An aqueous solution turns the red litmus solution blue. Excess addition of which of the following solutions would reverse the change
Anonymous Quiz
42%
Baking soda
25%
Lime
14%
Vinegar
18%
Hcl
😁6❤4👍2
How many diversities present on earth
Anonymous Quiz
34%
1.7 to 1.8 million
40%
1.7 to 1.8 billion
18%
1.7 to 1.8 trillion
8%
None
👍18🥰2❤1
A non-metal used to preserve food material is:
Anonymous Quiz
20%
Carbon
17%
Phosphorous
10%
Sulphur
53%
Nitrogen
👍4🔥4👏3👎2
Aqua regia is a freshly prepared mixture of concentrated HNO3 and concentrated HCl in the ratio of:
Anonymous Quiz
50%
1:3
29%
2:1
14%
3:2
7%
1:4
👍7😁2👏1
The metals that float when treated with water are:
Anonymous Quiz
29%
Magnesium
20%
Iron
35%
Sodium
16%
Platinum
👍7🔥2
The electronic configuration of an element is found to be 2, 4. How many bonds can one carbon atom form in a compound?
Anonymous Quiz
13%
1
26%
2
45%
4
16%
6
👍4🔥1
A carbon compound contains two atoms of carbon. Which name should the carbon compound bear?
Anonymous Quiz
18%
Butane
67%
Ethane
12%
Propane
3%
Pentane
❤2🥰1
Element X forms a chloride with the formula XCl2, which is solid with a high melting point. X would most likely be in the same group of the Periodic Table as:
Anonymous Quiz
32%
Na
55%
Mg
10%
Al
3%
So
🤔9👍3🔥2👎1
The electronic configuration of an element M is 2, 8, 4. In the modern periodic table, the element M is placed in
Anonymous Quiz
36%
4th
45%
14th
15%
2nd
4%
18th
🔥9👍1
Which of the following elements has 2 shells, and both are completely filled?
Anonymous Quiz
24%
Helium
59%
Neon
10%
Calcium
7%
Boron
👍7🥰2👏2🙏1
Which group supports the guidelines of the modern periodic table?
Anonymous Quiz
15%
Group 1
27%
Group 18
51%
Group 1 and 18
7%
Group 1 and 12
👍8❤5👏2😁1
What is the other name for group 18th elements?
Anonymous Quiz
62%
Nobel gases
15%
Alkalis metals
18%
Halogen
5%
Chalocagen
👍13🥰2