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Worksheets

DIFFICULT ROUND

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

In which of the following vessels will blood pressure be the highest?

a)

the pulmonary artery

b)

the aorta

c)

the pulmonary veins

d)

the inferior vena cava

2.

What is the electronic configuration of Argon and how many valence electron does it have?

a)

1s² 2s² 2p6 3s² 3p6

: 8

b)

1s² 2s² 2p6 3s² 3p2

: 4

c)

1s² 2s² 2p6 3s² 3p4s2  : 8

d)

1s² 2s² 2p6 3s² : 2

3.

Where do light dependent reactions of photosynthesis take place?

a)

Cell membrane

b)

ATP

c)

Thylakoids

d)

Chloroplast

4.

Occurs when both alleles are expressed equally in the phenotype of the heterozygote.

a)

Multiple Alleles

b)

Co-dominance

c)

Incomplete dominance

d)

Sex-linked traits

5.

If different alleles are present in the same genotype ten it is called

a)

Homozygous

b)

Heterozygous

c)

Diallelic

d)

Polyallelic

6.

Sheet of skeletal muscles which are present in the chest is?

a)

Bronchioles

b)

Bronchi

c)

Bronchus

d)

Pleura

7.

The formula that indicates the total number of atoms of the elements in a compound is the ____.

a)

empirical formula  

b)

molecular formula  

c)

simplest formula  

d)

structural formula

8.

Which hydrocarbon compound has a triple bond in the molecule?      

a)

ethane

 

b)

ethene

c)

ethyne

d)

butane

9.

What is the chemical formula of Isopropyl alcohol?

a)

C3H7OH

b)

 C4H10

c)

C18 H34 O2

d)

C2H5OH

10.

The non-metals from groups 5A, 6A, and 7A will __________.

a)

Lose electrons when they form ions

b)

Form positively charged ions

c)

Form ions with charges of -3, -2, and -1 respectively

d)

Forms ions with a numerical charge equal to their group number