Chemistry Quiz for Competitive Exams

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Chemistry Quiz for Competitive Exams


Q1.Which of the following is an element?
निम्नलिखित में से कौन सा तत्व है?
a. Aluminum
b. Bronze
c. Graphite
d. Silica

Q2.Which of the following is a compound?
निम्नलिखित में से कौन सा एक यौगिक है?
a. Soil
b. blood
c. sugar and water solution
d. Methane

Q3.Which of the following is not an example of a colloidal solution?
निम्न में से कौन कोलाइडल विलयन का उदाहरण नहीं है?
a. glue
b. milk
c. blood
d. water and salt solution

Q4.What is the size of particles in a suspension?
एक निलंबन में कणों का आकार क्या है?
a. less than 1 nm
b. greater than 1 nm
c. Less than 1micro meter
d. Greater than 1micro meter

Q5.Scattering of a beam of light is called?
प्रकाश की किरण को बिखेरना किसे कहा जाता है?
a. Reflection of light
b. Dispersion of light
c. Tyndall effect
d. None of the above

Q6.Which of the following is an example of solid Sol?
निम्न में से कौन ठोस सोल का उदाहरण है?
a. Milk
b. Face cream
c. Mud
d. Gemstone

Q7.There are four mixtures A, B, C, and D having PH values 11,9.5, 3.5, and 6.5 respectively. Which of the following is the most basic solution?
चार मिश्रण ए, बी, सी और डी हैं, जिनमें पीएच मान क्रमशः 11,9.5, 3.5 और 6.5 है। निम्नलिखित में से कौन सा सबसे बुनियादी समाधान है?
a. B
b. C
c. A
d. D

Q8.Which of the following is Lewis acid?
लुईस अम्ल निम्नलिखित में से कौन सा है?
a. PCl3
b. AlCl3
c. NCl3
d. AsCl3

Q9.What is the pH value of the H2S solution?
H2S समाधान का पीएच मान क्या है?
a. 0
b. 7
c. Greater than 7
d. Less than 7

Q10.What is the pH value of pure water?
शुद्ध पानी का पीएच मान क्या है?
a. 0
b. 7
c. 1
d. 14