General Science Jkssb Chemistry Set 1 Mcqs (504 MCQs) | JKSSB & SSC Quiz

General Science

jkssb chemistry set 1 mcqs

Download PDF

Topics

jkssb physics set 1 mcqs jkssb chemistry set 1 mcqs jkssb biology set 1 mcqs

Practice Questions

504 Total
Question 281 Discuss
Ask a Friend

Which chemical is known as 'Spirit of Salt'?

A
sulphuric acid
B
nitric acid
C
hydrochloric acid
D
acetic acid

Answer & Explanation

Correct Option: C

Historically, HCl was produced from rock salt and was referred to as Spirit of Salt.
Question 282 Discuss
Ask a Friend

The main component of 'Honey' is:

A
glucose
B
fructose
C
sucrose
D
maltose

Answer & Explanation

Correct Option: B

Honey primarily consists of fructose (about 38%) and glucose (about 31%).
Question 283 Discuss
Ask a Friend

Which of the following is a 'Liquid Non-metal'?

A
mercury
B
bromine
C
iodine
D
chlorine

Answer & Explanation

Correct Option: B

Bromine is the only non-metallic element that is liquid at room temperature.
Question 284 Discuss
Ask a Friend

Which law states that mass can neither be created nor destroyed in a chemical reaction?

A
law of constant proportions
B
law of conservation of mass
C
law of multiple proportions
D
avogadros law

Answer & Explanation

Correct Option: B

Lavoisier's law of conservation of mass implies that mass of reactants equals mass of products.
Question 285 Discuss
Ask a Friend

Which of the following is used as an 'Antiseptic' for wounds?

A
iodine
B
chlorine
C
sulphur
D
nitrogen

Answer & Explanation

Correct Option: A

Tincture of iodine (iodine in alcohol-water) is a powerful antiseptic.
Question 286 Discuss
Ask a Friend

The radioactive isotope used to determine the age of fossils is:

A
uranium-235
B
carbon-14
C
cobalt-60
D
iodine-131

Answer & Explanation

Correct Option: B

Carbon-14 dating is used to estimate the age of organic remains up to about 50,000 years old.
Question 287 Discuss
Ask a Friend

Which of the following is a 'Sublimable' substance?

A
salt
B
sugar
C
camphor
D
chalk

Answer & Explanation

Correct Option: C

Sublimation is the process where a solid changes directly to gas; Camphor, Naphthalene, and Dry Ice exhibit this.
Question 288 Discuss
Ask a Friend

Which gas is known as 'Laughing Gas'?

A
nitric oxide
B
nitrous oxide
C
nitrogen dioxide
D
ammonia

Answer & Explanation

Correct Option: B

Nitrous oxide (N2O) has a mild anesthetic and euphoric effect when inhaled.
Question 289 Discuss
Ask a Friend

Which of the following is the 'Purest Form of Carbon'?

A
charcoal
B
diamond
C
fullerene
D
coke

Answer & Explanation

Correct Option: C

Fullerenes (like C60) are considered the purest as they are smooth molecules with no 'dangling' bonds.
Question 290 Discuss
Ask a Friend

What is the chemical name of 'Vitamin C'?

A
citric acid
B
ascorbic acid
C
tartaric acid
D
oxalic acid

Answer & Explanation

Correct Option: B

Ascorbic acid is a water-soluble vitamin found in citrus fruits.
Previous Next