Aqua regia is a freshly prepared mixture of concentrated HNO3 and concentrated HCl in the ratio of:
Anonymous Quiz
58%
1:3
19%
2:4
15%
2:3
8%
2:1
👍12🤔3❤2
) A non-metal used to preserve food material is:
Anonymous Quiz
22%
Carbon
15%
Poshprous
56%
Nitrogen
8%
Sulphur
👍9🔥6🥰1
Which of the following oxides of iron would be obtained on prolonged reaction of iron with steam?
Anonymous Quiz
12%
Feo
22%
Fe20
61%
Fe2o3
6%
None
🔥10❤3👍3🥰3🤔2👏1
👍17😁8❤3👏3🙏3
The ratio of number of chromosomes in a human zygote and a human sperm is
Anonymous Quiz
44%
2:1
34%
1:2
15%
2:3
8%
4:6
👍4🔥3❤1👎1😁1🤔1
If an object is placed symmetrically between two plane mirrors, inclined at angle of 72 degree, then total no. of images formed:
Anonymous Quiz
18%
5
30%
4
23%
3
17%
2
11%
None
👍8🔥6👎1🥰1
👍8🔥6😁3🥰2👏2
An image of an object produced on a screen which is about 36 cm using a convex lens. The image produced is about 3 times the size of the object. What is the size of the object?
Anonymous Quiz
44%
12 cm
34%
33 cm
16%
34cm
5%
21cm
👍8🎉2
A student conducts an experiment using a convex lens. He places the object at a distance of 60 cm in front of the lens and observes that the image is formed at a distance of 30 cm behind the lens. What is the power of the lens?
Anonymous Quiz
34%
0.5
34%
0.005
24%
0.000005
8%
5
👍5🔥3👎2🤔1
A 10 mm long awl pin is placed vertically in front pin is formed at 30cm in front of the mirror. The focal length of this mirror is:
Anonymous Quiz
33%
-30
38%
-20
18%
-40
10%
None
👍5🔥4😁1
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If you are in class 9 or 10 then please read the complete msg.
I am taking live batches for you🫵
---------------------------
👊 Class 9 MH board - VICTORY BATCH
🔴 Subjects - Social Study | English | Maths | Science
🔴 For Semi - medium and English Medium
🔴 There are different teachers for each and every subject
⏰ Time - 9 pm onwards
Link - https://wygei.courses.store/263621
---------------------------
👊 Class 10 MH board - AARAMBH BATCH
🔴Subjects - Social Study | English | Maths | Science
🔴 For Semi - medium and English Medium
🔴 There are different teachers for each and every subject
⏰ Time - 9 pm onwards
Link - https://wygei.courses.store/253057
---------------------------
📢 Our Batch Features
○ Live Classes With a Proper Schedule
○ Regular Doubt Clearing Session
○ Structured Objective Test From Each And Every Topic
○ Subjective Test As Per Board Guidelines
○ Personal Mentorship By Shubham Jha
○ Study Material (Digest) in PDF format
○ Covers Full Syllabus and much more...
😎😎 Our Batches Are For Maharashtra State Board 😎😎
---------------------------
For any questions about the batches feel FREE to chat with me by replying with your question.
If required you can also request a callback.
Thank You👊
Shubham Jha
👍23👏2👎1🔥1
Aqua regia is a freshly prepared mixture of concentrated HNO3 and concentrated HCl in the ratio of
Anonymous Quiz
61%
1:3
24%
2:3
11%
3:2
4%
4:1
👍6🔥3
When a few drops of iodine solution are added to rice water, the solution turns blue- black in colour. This indicates that rice water contains:
Anonymous Quiz
18%
Fat
28%
Protien
48%
Starch
5%
None
🔥3🥰2👍1
What is the percentage of the oxygen in the expired air when a person is resting?
Anonymous Quiz
26%
12
34%
16
28%
24
11%
21
👍6😱3🔥1🎉1